Bolt Carriers Gun Parts
(167 deals total)
- Bolt Carriers
from $89.99
UPC:
818500014980
MPN:
XP-BCG-M16-C
Bolt Finish:
Chrome
Bolt Material:
Carpenter 158 Steel
Caliber Gauge:
5.56 NATO
from $115.93
UPC:
860006521437
MPN:
RTB-22BA487
Caliber:
22 LR
Material:
Stainless Steel
from $109.99
UPC:
005165449729
MPN:
5165449729
Product Line:
Toolcraft
Platform:
AR-15
Includes:
Premium BCG
from $349.99
UPC:
084871327367
MPN:
OBC556
Caliber:
5.56 NATO
Type:
Bolt Carrier Group
Model:
Optimized AR-15 Bolt Carrier Group
from $109.99
UPC:
051655116634
MPN:
51655116634
Manufacturer:
Toolcraft
Platform:
AR-15
Includes:
Premium BCG
from $119.95
UPC:
810180583145
MPN:
BHA-BCGOG
Carrier Material:
8620 Steel
Carrier Coating:
Titanium Nitride (TiN) Gold
Bolt Material:
9310 Steel
from $219.99
UPC:
669185246391
MPN:
SOLGW-BCG556-NTC
Caliber:
5.56 NATO/.300 Blackout
Manufacturer:
Sons Of Liberty Gun Works
Model:
NTC Bolt Carrier Group 5.56 NATO/.300 Blackout
from $239.99
UPC:
816341029705
MPN:
FF556BCGCNITRIDE-LW-CR
Cartridge:
223 Remington/5.56x45mm NATO
Color:
Chrome
Material:
Steel
from $199.99
UPC:
816341029699
MPN:
FF556BCGCNITRIDE-CR
Cartridge:
5.56x45mm NATO
Color:
Chrome
Material:
Steel
from $109.99
UPC:
816341022805
MPN:
FF9MMBCGCNITRIDE
Cartridge:
9mm Luger
Color:
Black Nitride
Material:
Steel
6 hours ago
The Expo Arms Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a corrosion resistant hard chrome finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws. Made in the U.S.A. and covered by a lifetime warranty, you can count on this BCG for a lifetime of service.
Features:
- .233/5.56 NATO
- Hard chrome finish
- M16 cut
- Aircraft quality 8620 steel carrier
- 4130 steel gas key
- UPC: 818500014980
- MPN: XP-BCG-M16-C
6 hours ago
The Microbest Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a corrosion resistant hard chrome finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws. Made in the U.S.A.
Features:
- .233/5.56 NATO
- Hard chrome finish
- M16 cut
- Aircraft quality 8620 steel carrier
- 4130 steel gas key
- Properly staked grade 8 gas key screws
- Carpenter 158 steel bolt
- 4140 steel extractor
AR15Discounts
7022
6 hours ago
SKU: 2030
Description
This Bear Creek Arsenal BCG features a full mass M16 profile bolt carrier machined from 8620 steel and finished with Salt Bath Nitriding. The gas key is properly staked and the carrier does have forward assist serrations. The 5.56 NATO bolt assembly is made of 9310 steel and features a manganese phosphate finish. Every BCG goes through magnetic particle inspection (MPI).
Specifications:
Bolt Finish – Manganese Phosphate
Bolt Material – 9310 Steel
Caliber – 5.56 NATO (will also work with .223 and 300 BLK)
Carrier Finish – Salt Bath Nitride
- MPN: BCG-15
11 hours ago
This 9mm BCG is perfect for your 9mm Pistol Caliber AR-15 Build. Due to the increased rearward velocity, blowback AR systems require a heavier carrier. This AR9 Colt pattern bolt comes in at 14.8 ounces, providing the correct weight needed to tame your blow back system.
Compatible with both Colt and Glock pattern builds.
This BCG works great with any Colt style 9mm rifle and Colt pattern magazines. We highly recommend ASC mags, which you can purchase here
Colt & Glock Compatible
USA made 8620 Steel Carrier Construction
Phosphated or Nitrided Finish
- UPC: 860006521407
- MPN: 9MM-BCG-C-PH
12 hours ago
Built for .223 Remington, 5.56 NATO, and .300 Blackout platforms, this complete bolt carrier group combines proven materials, Mil-Spec heat treatment, and a slick nickel boron finish for dependable function and easier cleaning. The M16-profile carrier is paired with a 9310 bolt, 17-4 stainless gas key and firing pin, plus an S-7 extractor for strength in high-wear areas. Shot peening and MPI inspection on the bolt add confidence for hard-use rifle builds.
Features
Compatible with .223 Remington, 5.56 NATO, and .300 Blackout
M16-style auto carrier
13 hours ago
Right To Bear Dedicated 22 LR Stainless Steel Bolt Group.
Great for any .22LR enthusiast. This Right To Bear Bolt Group was developed to provide a long lasting and reliable bolt group that is compatible with all CMMG and RTB .22 AR barrels.
Designed to work with all CMMG and RTB .22LR barrels
Stainless Steel Construction
These .22 BCG's are test fired and may have light carbon fouling
Maximum Purchase: 50 units
SKU: RTB-22BA487
UPC: 860006521437
- UPC: 860006521437
- MPN: RTB-22BA487
13 hours ago
COMMERCIAL-BCG-AUTO
THIS IS NOT A BCM PRODUCT (and does NOT go thru the BCM QC process).
Quantities are limited.
We aquired this as a surplus commerical spec AR15 Bolt Carrier Group. A good option for a training or sporting rifle.
Packed in bulk in a poly bag.
- MPN: COMMERCIAL-BCG-AUTO
21 hours ago
The Expo Arms Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a tough manganese phosphate finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws. Made in the U.S.A. and covered by a lifetime warranty, you can count on this BCG for a lifetime of service.
Features:
- .233/5.56 NATO
- Hard chromed bore and gas key
- Manganese Phosphate finish
- M16 cut
- Aircraft quality 8620 steel carrier
- MPN: XP-BCG-M16-P
1 day ago
SKU 51655115274
Brand Palmetto State Armory
Model Number 51655115274
UPC 51655115274
DETAILS
Manufacturer: Toolcraft
Caliber: 5.56/.223
Bolt Finish: Nitride
Bolt Steel: Carpenter No. 158 Steel
Profile: Full Auto Profile
Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec
FEATURES
This Toolcraft Logo'd Nitride BCG is made with a carpenter 158 bolt with a full-auto profile, designed to be used in AR-15 & M-16 style rifles. Bolt is magnetic particle inspected (MPI) for a uniform quality and operational reliability.
UPC#: 051655115274
- MPN: 51655115274
2 days ago
$109.99
SKU: 5165449729
UPC: 5165449729
MFR#: 5165449729
Nickel Boron Finish
Milspec Carpenter No. 158® steel bolt
Shot Peened Bolt
High pressure tested
Mag particle inspected
Gas Key Hardened to USGI Specifications
Gas Key Grade 8 Hardened Fasteners
Gas Key Staked Per Mil-Spec
Tool Steel Extractor
Extractor Spring
Extractor O-ring Insert
ToolCraft Logo
PA-15 Engraving
ToolCraft Premium Carpenter 158 BCG with Nickel Boron coated finish. BCG has the ToolCraft Logo and PA-15 engraved on to the side of the BCG.
SKU: 5165449729
UPC#: 005165449729
- UPC: 005165449729
- MPN: 5165449729
3 days ago
AR15 Complete Bolt Assembly, Brand New • AR-15 Complete Bolt and Carrier • Bolt, Bolt Carrier and Firing Pin Ready to Drop Into the Rifle or Carbine Upper of your Choice • Staked Gas Key prevents Gas Leakage that leads to Short Stroking
Specs:
Made by Anderson Manufacturing
Coating: Black Nitride
Print Spec: made to Mil-spec drawing except no chrome lining.
Carrier Material: 8620CD
Bolt Material: 9310
This item cannot be shipped to California, Connecticut, Massachusetts, New Jersey, New York or the state of Washington.
SKU: ANDM16B
CDNN Sports
1116
3 days ago
The Faxon Superfinished 5.56 M16 Bolt Carrier Group is built for high-round-count reliability, combining mil-spec construction with a low-friction superfinish and durable hard chrome coating. Designed to reduce wear and fouling, it delivers smooth cycling and long service life in demanding conditions.
Features:
- Complete M16-style bolt carrier group
- Compatible with 5.56 NATO AR-15 and M16 platforms
- 9310 tool steel bolt, fully heat-treated
- Hard chrome finish on bolt, carrier, gas key, and cam pin
- Superfinished carrier body for reduced friction
- MPI-tested bolt for reliability
- UPC: 816341029699
- MPN: FF556BCGCNITRIDE-CR
3 days ago
The Expo Arms 5.56 NATO Complete M16-Cut AR-15 Bolt Carrier Group is a reliable choice for any AR-15 build. This drop-in BCG features a MIL-SPEC dimension, magnetic particle inspected carpenter 158 steel bolt, and corrosion-resistant salt bath nitride finish. It is proudly made in the U.S.A. using domestically sourced 8620 steel. The M16 cut carrier comes with a properly staked grade 8 screws-fastened gas key. With its lifetime warranty, this BCG ensures long-lasting service.
Features:
- 4140 steel cam pin
- MIL-SPEC gas rings
- Aircraft quality 8620 steel carrier
- MPN: XP-BCG-AR15
4 days ago
The Faxon 9mm Bolt Carrier Group is the perfect choice for your pistol caliber carbine. This Gen 2 BCG is a full mass carrier, fully heat treated, with a salt bath nitride finish. This bolt carrier group is compatible with both Glock and Colt style lower receivers.
NOTE: Faxon Firearms recommends the use of MIL-SPEC triggers with their Gen 2 9mm BCG. Faxon's 9mm BCG is not compatible with Spike's Tactical Colt 9mm lower receivers.
Features:
- Compatible with Glock and Colt style lower receivers
- Removable carrier weight
- Mil-Spec 8620 steel carrier
- Heat treated
- UPC: 816341022805
- MPN: FF9MMBCGCNITRIDE
4 days ago
The Expo Arms Bolt Carrier Group is a great choice for any build. This drop-in 9mm AR BCG features a corrosion resistant salt bath Nitride finish for additional corrosion resistance and is made from domestically sourced 8620 steel. Designed for blow back operating systems, this 9mm bolt is heavy duty and will ensure reliable cycling in your custom AR-9 build. Made in the U.S.A. and covered by a lifetime warranty, you can count on this BCG for a lifetime of service.
Features:
9mm
Compatible with Colt or Glock-style
Salt bath nitride finish
Aircraft quality 8620 steel carrier
- MPN: XP-BCG-9MM
4 days ago
$239.99
The Faxon Superfinished 5.56 Gunner Lightweight BCG is a premium AR-15 upgrade designed for smooth operation, reduced weight, and long-term reliability. Weighing just 8.5 oz and machined from high-strength 9310 tool steel, its lightweight design delivers smooth cycling while remaining rated or full-auto use.
- UPC: 816341029705
- MPN: FF556BCGCNITRIDE-LW-
4 days ago
The Bear Creek Arsenal Complete M16 Bolt Carrier Group is a quality part for your next build. The full mass M16 pattern 8620 steel bolt carrier has been treated with a super slick salt bath nitride finish for easy cleaning, reduced friction, and a reduced need for lubrication. The 9310 steel 5.56 NATO pattern bolt assembly has a durable manganese phosphate finish. A properly staked gas key and forward assist serrations round out the great features.
- MPN: BCG-15
5 days ago
The SureFire Optimized AR-15 Bolt Carrier Group is a next-generation solution designed specifically for 5.56 mm/.223 caliber rifles and carbines. Engineered with innovative features, this bolt carrier group delivers enhanced reliability and performance, whether firing suppressed or unsuppressed. One of its standout features is the long-stroke design, which provides 60% more travel beyond the magazine. This increased travel time improves magazine feed, reducing the likelihood of bolt-over-base malfunctions.
- UPC: 084871327367
- MPN: SF-OBC-556
6 days ago
$119.95
The BHA Precision Titanium Nitride Gold Bolt Carrier Group is meticulously engineered for shooters who demand excellence from their firearms. The Titanium Nitride (TiN) gold coating on the carrier and gas key provides a very slick surface that enhances reliability, reduces friction, and makes cleaning easier. Known for its exceptional hardness and wear resistance, the TiN coating ensures your BCG withstands the rigors of heavy use while adding a striking aesthetic to your rifle.
Key Features:
– M16 Style Carrier
– Machined from 8620 Steel
– Heat Treated for enhanced strength
- UPC: 810180583145
- MPN: BHA-BCGOG
6 days ago
The JP Enterprises 9mm Bolt Carrier Group is a short-stroke EnhancedBolt assembly designed to deliver a smoother, more reliable operating system for 9mm AR platforms. Engineered to work with JP’s 9mm Silent Captured Spring, it eliminates the need for a central mass while maintaining the bolt weight needed for dependable function. This setup helps reduce bolt bounce, improve accuracy, and support reliable last-round lockback in compatible receiver systems.
- UPC: 812872025230
- MPN: JPBC-9MMA
2 weeks ago
,
by Dealer
With strength in mind, Toolcraft made their Bolts from heavy duty 9310 Alloy Steel and their Bolt Carriers from 8620 case-hardening aircraft grade steel. 9310 steel has a high core strength rating, high fatigue strength, and a high hardenability rating overall. Normally, 9310 steel is used for gears and crankshafts in massive trucks and large aircraft, so its easy to see why it would make an ideal Bolt for an AR. Why 9310 instead of Mil-Spec Carpenter 158 steel?
- MPN: 5165450264
2 weeks ago
Description
The Microbest Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a corrosion resistant salt bath nitride finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws. Made in the U.S.A. and covered by a lifetime warranty, you can count on this BCG for a lifetime of service.
Features:
- .233/5.56 NATO
- Salt bath nitride finish
- M16 cut
- Aircraft quality 8620 steel carrier
AR15Discounts
2699
2 weeks ago
$219.99
The Sons of Liberty Gun Works Nickel Teflon Coated Bolt Carrier Group—standard in the SOLGW Mk1 rifle—is now offered as a standalone component. This BCG is the product of nearly two years of development and evaluation focused on advanced coatings that enhance durability, reduce friction, and improve corrosion resistance.
- UPC: 669185246391
- MPN: SOLGWBCG556-NTC
2 weeks ago
$79.99
SKU: PD-BCG-M16-P
The Precision Defense M16 Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a tough manganese phosphate finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16/Full Auto cut carrier includes a gas key fastened by properly staked grade 8 screws. Made in the U.S.A. and covered by a lifetime warranty, you can count on this BCG for a lifetime of service.
Features:
.233/5.56 NATO
Hard chromed bore and gas key
Manganese Phosphate finish
M16 cut
- MPN: PD-BCG-M16-P
2 weeks ago
SKU 51655116634
Brand Palmetto State Armory
UPC 51655116634
DETAILS
Manufacturer: Toolcraft
Platform: AR-15
Includes: Premium BCG
Finish: Nickel Boron
FEATURES
Milspec Carpenter No. 158® steel bolt
Shot Peened Bolt
Mag particle inspected
Gas Key Hardened to USGI Specifications
Gas Key Grade 8 Hardened Fasteners
Gas Key Staked Per Mil-Spec
Tool Steel Extractor
Extractor Spring
Extractor O-ring Insert
UPC#: 051655116634
- UPC: 051655116634
- MPN: 51655116634
3 weeks ago
SKU 7789153
UPC 7789153
DETAILS
Manufacturer: R&D Precision
Product Line: AR-45
Includes: AR-45 Bolt Carrier Group
Finish: Black
FEATURES
R&D Precision AR-45 .45 ACP bolt carrier group. Phosphate coated, 8620 steel, this AR-45 Bolt allows use with Glock®-style double stack magazines.
UPC#: 000007789153
3 weeks ago
NBS Nickel Boron Bolt Carrier Group for .223/5.56/300BLK
Carrier
M16 style (Auto)
Machined from 8620 tool steel
Heat treated to mil spec
Bolt
Machined from 9310 tool steel
Heat treated to military specifications
Shot Peened
MPI (Mag Particle Inspected)
Gas Key
Machined from 17-4 Stainless Steel
Heat treated to mil spec
Extractor
Machined from S-7 shock resisting tool steel
Heat treated to mil spec
Shot peened
Extractor spring is made of stainless steel music wire
Firing Pin
Machined from 17-4 stainless steel
Heat treated to milspec
Specifications
Weight: 11.6 oz
AR15Discounts
2576
1 month ago
THIS IS NOT A BCM PRODUCT (and does NOT go through the BCM QC process).
Quantities are limited.
We aquired these as surplus commerical spec AR15 Bolt Carriers with gas key installed. A good option for a training or sporting rifle.
M16 bolt carrier with bore interior chrome lined and gas key interior chrome lined.
Packed in bulk in a poly bag.
SKU: COMMERCIAL-BC-STRIPPED-W-GK
Bravo Company
916
1 month ago
The Dirty Bird Enhanced Bolt Carrier Group for .223/5.56 features a unique full-auto carrier design with practical improvements in two key areas:
Strategically relocated load bearing surfaces reduce carrier tilt/can’t during recoil, thus increasing reliability and longevity.
Additional wall thickness in the gas exhaust port area for added strength and rigidity.
- UPC: 810084374856
- MPN: D009-4
1 month ago
THIS IS NOT A BCM PRODUCT (and does NOT go through the BCM QC process).
Quantities are limited.
We aquired these as stripped surplus commerical spec AR15 Bolt Carriers. A good option for a training or sporting rifle.
M16 bolt carrier with bore interior chrome lined.
Packed in bulk in a poly bag.
SKU: COMMERCIAL-BC-STRIPPED
Bravo Company
495
1 month ago
Description
In building or upgrading an AR platform rifle, the bolt is, in many ways, the heart of the rifle. A quality bolt is part of what will make a rifle reliable, so it makes sense that the bolt and its carrier are one of those parts that precision manufacturing has really helped make into a part that can last for high round counts. If you’re looking to upgrade the bolt in your AR, consider the Rubber City Armory Titanium 5.56/.223 Bolt Carrier Assembly .
- MPN: BTI-AGK
1 month ago
Faxon Machining engineers and manufactures components that are found everywhere. In theaters of combat, on the ocean floor, in cars, in aircraft, on the ISS, and on Mars. Now, they bring their engineering excellence to bear on providing new and innovative components for the AR-15 platform that set the standard for quality. Faxon Firearms, manufacturing strategic solutions for tactical problems.
- UPC: 816341020870
- MPN: FF556BCGCNITRIDE
1 month ago
SKU 516446953
Brand Palmetto State Armory
Model Number 516446953
UPC 516446953
DETAILS
Manufacturer: Palmetto State Armory
Platform: AR-15
Bolt Finish: Nitride
Bolt Steel: 9310
Profile: Full Auto Profile
Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec
FEATURES
PSA 5.56 nitride MPI full-auto bolt carrier group. Bolt is Magnetic Particle Inspected (MPI). 8620 Full-auto profile bolt carrier group with 9310 steel bolt. Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec.
UPC#: 000516446953
- UPC: 000516446953
- MPN: 516446953
1 month ago
AR15 Complete Bolt Assembly, Brand New • AR-15 Complete Bolt and Carrier • Bolt, Bolt Carrier and Firing Pin Ready to Drop Into the Rifle or Carbine Upper of your Choice • Staked Gas Key prevents Gas Leakage that leads to Short Stroking
Specs:
Made by Anderson Manufacturing
Coating: Black Nitride
Print Spec: made to Mil-spec drawing except no chrome lining.
Carrier Material: 8620CD
Bolt Material: 9310
This item cannot be shipped to California, Connecticut, Massachusetts, New Jersey, New York or the state of Washington.
SKU: ANDBCG
- UPC: 640901517025
- MPN: AM-10-08-M16-NIT
1 month ago
assembled m16 bolt carrier group, pvd finish
8620 carrier
gas key properly staked
9310 (or c158 if 9310 not available) bolt, nitride
extractor assembly
ejector assembly
firing pin / retaining pin
cam pin
Item #: FDE bcg
- MPN: FDE bcg
1 month ago
SKU 516446915
Brand Palmetto State Armory
Model Number 516446450
UPC 516446915
DETAILS
Manufacturer: Palmetto State Armory
Caliber: 5.56/.223
Bolt Finish: Nitride
Bolt Steel: Carpenter No. 158 Steel
Profile: Full Auto Profile
Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec
FEATURES
The PSA Freedom Nitride BCG is made with a carpenter 158 bolt with a full-auto profile, designed to be used in AR-15 & M-16 style rifles. Bolt is magnetic particle inspected for a uniform quality and operational reliability.
UPC#: 000516446915
- UPC: 000516446915
- MPN: 516446915
2 months ago
,
by Dealer
A solid Bolt Carrier Group is a key component of your Ar15. Microbest produces top quality mil-spec BCGs for the military and other quality rifle manufacturers. This 5.56 / 223 BCG features a full hard chrome exterior coating and is properly made, ready to run reliably in your rifle.
Mil Spec 8620 Carrier, Full Chrome
- 8620 Quality Steel
- Full Auto M-16 cut
Mil-Spec Bolt , Full Chrome
- Carpenter 158 Steel (c158)
- Shot Peened
- High Pressure Tested (HPT)
- Magnetic Particle Inspected (MPI)
- Sprinco Extractor and ejector springs, with sprinco insert and oring
Mid State Firearms
1417
2 months ago
This Left-Handed BCG by Toolcraft is a high quality BCG, for our Left-Handed friends, so you don’t have to worry about any more annoying brass being ejected across your body. The bolt is CNC machined from heavy duty 9310 alloy steel and 8620 steel is used for the bolt carrier. 9310 steel has a high core & fatigue strength rating, a high hardenability rating, and it’s about 7% stronger than the Carpenter 158 steel used in most BCGs. The Toolcraft 5.56/.223/.300BLK Bolt Carrier Group comes with the Salt Black Nitride finish for exceptional corrosion and wear resistance.
- MPN: TOOAUTO-016LH
2 months ago
Color: BlackFinish: NitrideCaliber: .223 Remington , .300 AAC Blackout , 5.56x45mm NATOGun Make: AR PlatformGun Model: AR-15 , M4 , M16Gun Type: RifleAdditional Features: Low-MassCondition: New
Code:TRB-ABA-AC1-BCG556-LM
MPN:BCG556-LM
UPC:810089411938
- UPC: 810089411938
- MPN: BCG556-LM
2 months ago
Are you looking for the best Bolt Carrier Groups on the market? This fully assembled Bolt Carrier Group from TRYBE Defense includes the bolt, bolt carrier, gas key, firing pin, cam pin, and firing pin retaining pin. Every Bolt is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) before making its way to our loyal TRYBE. Machined from ultra-durable and corrosion-resistant 8620 steel, nitride QPQ-treated, and hardened to mil-spec conditions to provide you with years of reliable service, this Bolt Carrier Group is sure to satisfy even the most ardent and exacting operator.
- UPC: 810030581437
- MPN: BCG65GRENQPQ
3 months ago
,
by Dealer
he Toolcraft 6.5 Creedmoor Double Ejector BCG in black nitride is manufactured using a 9310 steel bolt and a 8620 steel carrier. This DPMS compatible AR10 BCG features forward assist serrations and is fully compatible with the high pressure 6.5 Creedmoor cartridge, as well as all other .470 bolt face calibers. Also featured with this 6.5 Creedmoor Dual Ejector BCG is a 0.065″ reduced diameter firing pin, and firing pin channel.
- MPN: TC65CDEBCGBN
3 months ago
The Noveske Bolt Carrier Group features a full auto carrier with a staked gas key. The bolt is machined from 158 Carpenters Steel. The bolt is then Shot peened and MP tested to ensure years of rugged use without fail. Mil-Spec bolt face works for standard cartridges, such as 5.56mm, 300 Blackout and 22 Nosler.
Details:
Cartridge: 5.56x45mm NATO
Color: Black Phosphate
Material: Steel
Mil-Spec or Commercial: Mil-Spec
Country of Origin: United States of America
Compatible With: AR-15
SKU: 496470
- UPC: 840906108895
- MPN: 05000429
3 months ago
,
by Dealer
Fully functional Microbest complete bcg. This bolt carrier group is chromed inside and out and made by one of the most renowned manufacturers in the industry. These “blems” may have blemishes or tool marks in areas that do not affect function. Blems could be dings or scratches, tool marks, etc. These BCGs are guaranteed to be fully functional.
These include OCKS gas key screws and Sprinco ejector and extractor springs.
Microbest MPI bolts are individually high pressure / proof tested as well.
Mil Spec 8620 Carrier, Full Chrome
8620 Quality Steel
Full Auto M-16 cut
Mid State Firearms
2490
3 months ago
The AR-STONER™ Nitride Bolt Carrier Group is a great option for your next LR-308. Machined to strict mil-spec tolerances, this bolt carrier group is drop-in ready. The Nitride finish provides enhanced reliability and is more resistant to wear. With a 308 Winchester bolt face, this Bolt Carrier Group is ideal for your next LR-308 Marksman Rifle.
Note: Upon installation, headspace should be verified by a qualified gunsmith.
Carrier Machined from 8620
.308 Bolt Machined from 9310
Forged Gas Key Properly Staked
S7 Tool Steel Extractor
Heavy Duty Extractor Spring
Grade 8 hardware
- UPC: 736684139810
- MPN: BCGAR10
3 months ago
SKU: 12443
Our upgraded nickel boron bolt carrier group is an eye catching addition to your AR build. Mil-spec dimensions and coating ensure the highest quality and correct component interface.
Features:
Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
Carrier has forward assist serrations
Shrouded firing pin
Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)
Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked.
5.56 Bolt is shot Peened and MPI
Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
Tool Steel Extractor
- UPC: 840014611911
- MPN: APRH100071C
3 months ago
,
by Dealer
$79.00
High quality 8620 steel, chrome plated Bolt carrier and staked gas key.
No bolt face or cam pin or firing pin included with this one. For those parts find our complete bolt carrier groups, or BCGs.
Microbest has supplied tight tolerance parts for the firearms, electronics and medical device industries for over 64 years. Their commitment to first-time quality and on-time delivery are
recognized by commercial and military customers around the world.
4 months ago
,
by Dealer
308 DPMS Style AR-10 Nitride Bolt Carrier Group (LR-308 Compatible)
Complete your large-frame build with a reliable, durable, and builder-friendly .308 bolt carrier group designed for DPMS-pattern AR-10 / LR-308 platforms.
Built for smooth cycling and long service life, this black nitride finished BCG offers improved wear resistance, corrosion protection, and easier cleaning compared to traditional phosphate carriers.
Whether you’re finishing a precision .308 build or a hard-use range rifle, this carrier group delivers dependable performance without premium-brand pricing.
4 months ago
The NBS AR-15 5.56/.223 Left-Handed BCG is the perfect starting point for our wrong-handed friends. This BCG has one of the best black nitride finishes we have seen, and comes in a mil-spec design with a lifetime warranty. The bolt is made from enhanced 9310 steel while the carrier is made from 8620 tool steel. It is shot-peened and magnetic particle inspected.
Included:
- Bolt w/ D2 Extractor
- Bolt Carrier w/ staked Gas Key
- Cam Pin
- Firing Pin
- Firing Pin Retaining Pin
Technical Specs:
- Gas system: Direct Impingement
- Caliber: 5.56x45mm NATO/.223 Rem, .300 Blackout
AR15Discounts
190
4 months ago
A solid Bolt Carrier Group is a key component of your Ar15. Microbest produces top quality mil-spec BCGs for the military and other quality rifle manufacturers. This 5.56 / 223 BCG features a full hard chrome exterior coating and is properly made, ready to run reliably in your rifle. These may have small blemishes, machine marks, or coating defects that do not affect function.
Mil Spec 8620 Carrier, Full Chrome
- 8620 Quality Steel
- Full Auto M-16 cut
Mil-Spec Bolt , Full Chrome
- Carpenter 158 Steel (c158)
- Shot Peened
- High Pressure Tested (HPT)
Mid State Firearms
1504
4 months ago
The TacFire AR-10 .308 Win USA Made Bolt Carrier Group (BCG) was built to ensure your AR-10 runs smoothly at the range or in the field. This BCG features an 8620-steel carrier and a 9310-steel bolt. It’s magnetic particle inspected (MPI) and shot peened. This BCG also boasts a staked gas key, and the gas key and extractor are nitride-treated. Plus, the carrier features a QPQ nitride corrosion-resistant finish. To top it all off, this BCG is serrated for use with your rifle’s forward assist. Order now! Made in USA.
Specifications
Material: Steel
Finish: Nitride
Color: Black
- UPC: 811261027893
- MPN: BCG308
5 months ago
Toolcraft 5.56 NATO Black Nitride Bolt Carrier Group 9310
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Simply the best 5.56 NATO bolt carrier group on the market! Available in either 9310 or C158 Steel Bolt.
- MPN: TC556BCGBN9310
6 months ago
,
by Dealer
Features:
- All-Chrome Except for Phosphate Extractor and Phosphate Gas Key
LUXE UPGRADES
- Sprinco 27001 Extractor Spring, 5-coil
- Sprinco 27001 Ejector Spring, Enhanced Chrome Silicon Moly Plated Cryogenic Processed
- OCKS Gas Key Fasteners
- MPN: 0481
6 months ago
Description
This bolt carrier assembly is designed to work with any AR-15 rifle, upper half, or barrel designed for left hand ejection in the 5.56/.223 caliber. The nickel boron coating has increased lubricity and a low friction co-efficient; therefore, the life expectancy of a firearm will be greatly increased due to reduced friction wear.
Coating: Extremely Durable Nickel Boron Coating
Bolt carrier material: 8620 steel
Bolt: 5.56/.223 Left-Handed Bolt assembly
Included parts: Bolt carrier, bolt assembly, cam pin, firing pin, and firing pin retaining pin
- MPN: STAG300735L
6 months ago
The Andro Corp AR-10 Bolt Carrier Group is a durable and high-performance component, featuring an 8620 steel carrier and a .308 bolt machined from 9310 steel. The bolt is shot-peened and undergoes high-pressure testing and magnetic particle inspection for reliability. A properly staked forged gas key, S7 tool steel extractor, and heavy-duty extractor spring contribute to consistent function. Grade 8 hardware adds strength, making this BCG suited for demanding use. Finished with a nitride coating, this BCG provides enhanced wear and corrosion resistance.
FEATURES:
- UPC: 736684139810
- MPN: BCGAR10
6 months ago
Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available.
This Premium 9mm Bolt Carrier Assembly is compatible with all GLOCK style AR builds. Maintaining a harder core than standard 8620 steel, this carrier is machined from 8620H. OD ground prior to machining in a pre-hardened state for improved tolerances post machining and coating. A long duration salt bath nitride finish is applied for a long service life and superior corrosion resistance.
- UPC: 000000111123
- MPN: FM9-BCG
6 months ago
Weight 12.8 oz Finish
Black Nitride
Bolt Material 9310 Steel
Cartridge Compatibility .223/5.56 NATO/.300 BLK
Carrier Profile M16
High Pressure Tested: Untested
Magnetic Particle Inspected: Yes
Platform: AR-15
Bolt Finish: Salt Bath Nitride
SKU: D242-1
- UPC: 810084374863
- MPN: D242-1
6 months ago
$77.77
Enhance the performance of your AR-15 or M16 with the BHA Precision Complete Nickel Boron Faceted Bolt Carrier Group (BCG). Engineered for exceptional reliability and durability, this BCG is designed to withstand rigorous use and deliver superior performance. The faceted edge cuts reduce friction and enhance reliability, ensuring smooth operation even under demanding conditions.
Key Features:
Faceted Edge Cuts:
Reduces friction and enhances reliability for smoother cycling.
AR-15 and M16 Compatible:
Suitable for rifles chambered in 5.56 NATO, .223 Remington, 300 Blackout
- UPC: 810180583046
- MPN: BHA-BCGPN
7 months ago
,
by Dealer
The Dirty Bird Enhanced Bolt Carrier Group for .223/5.56 features a unique carrier design with practical improvements in two key areas:
Strategically relocated load bearing surfaces reduce carrier tilt/can’t during recoil, thus increasing reliability and longevity.
Additional wall thickness in the gas exhaust port area for added strength and rigidity.
- UPC: 000000010995
- MPN: D009
8 months ago
Founded in January 2014, Cryptic Coatings specializes in bolt carrier groups and BCG coatings. With an ever-expanding product line, their BCGs and coatings offer reduced friction, longer lifespans, and increased performance, backed by their lifetime warranty.
- MPN: CC-0102
