Bolt Carriers Gun Parts
(164 deals total)
- Bolt Carriers
from $89.99
UPC:
000516446953
MPN:
516446953
Model:
Nitride MPI Full-Auto Bolt Carrier Group
Description:
PSA 5.56 Nitride MPI Full-Auto Bolt Carrier Group - 516446953
Type:
PSA Custom Firearm
from $349.99
UPC:
815421020168
MPN:
APRH308186
Material:
Case Hardened 9310 Steel
Finish:
All bolt components are shot peened and black nitride coated
Extractor:
Machined from 4340 Steel with double o-rings and double springs
from $109.00
UPC:
000000111123
MPN:
FM9-BCG
from $315.92
UPC:
084871327367
MPN:
OBC556
Caliber:
5.56 NATO
Type:
Bolt Carrier Group
Model:
Optimized AR-15 Bolt Carrier Group
from $58.06
UPC:
712038922307
MPN:
B2K630AA000P
Bolt Carrier Finish:
Nitride
Bolt Carrier Material:
8620 Steel
Bolt Finish:
Magnesium Phosphate
20 months ago
Diamondback Firearms 5.56 Bolt Carrier Group is coated in a black nitride finish to prevent carbon build up and ensure that your rifle keeps functioning. You can be confident that every part of this bolt carrier group is machined, installed, and tested to a high standard of quality.
Features:
- 5.56 NATO
- M16/AR-15 Cut
- Mil-Spec Staked Hex Screws
- High Pressure Tested to over 90,000 PSI
- 16.05 oz
- Black Nitride Finish
The Diamondback Firearms 5.56 NATO BCG is a great addition to your next build AR-15 or as a back up for your existing rifles.
Back
Specifications
- MPN: DB15-BCGS
20 months ago
The Dirty Bird Industries Nickel Boron Bolt Carrier Group is a substantial upgrade from a standard BGC. Its NiB coating reduces friction on sliding surfaces and prevents carbon build-up making cleaning a much easier task. The NiB coating offers great heat dissipation, allowing reduced wear on the BCG and interacting parts, to further prolong the lifespan of the unit. MIL-SPEC dimensions ensure correct component function and reliability.
Features:
Machined from 8620 tool steel (carrier) and 9310 carpenter steel (bolt)
Forward assist serrations
Shrouded firing pin
- UPC: 810084370063
- MPN: D112
20 months ago
The NBS .223/5.56 Black Nitride Bolt Carrier Group was designed with strength in mind. Starting with a 9310 Steel Bolt, which is aircraft-grade material, this bolt has a high core strength rating, a high fatigue strength, and a high hardenability rating. 9310 steel, when treated properly, is about 7% better than Carpenter 158 steel, so you know that you will have a dependable BCG, when you drop this into your rifle.
- MPN: 4300
20 months ago
Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero.
The .224 Valkyrie Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
Features:
- M16 cut carrier
- UPC: 881314861804
- MPN: UHFZ224V01NH
20 months ago
Self-Lubricating Surface Treatment Provides Smooth, Reliable Function
- UPC: 094922034939
- MPN: 009FZAR1501NH
20 months ago
The Toolcraft 5.56×45 NATO/.223 Rem (or .300 Blackout) Bolt Carrier Group comes in the Titanium Nitride (TiN) finish to reduce overall wear and friction, and for upgrading your existing AR build. These Full Auto M16 Profile Direct Impingement BCG designs have multiple features that separate them from the average AR Bolt Carrier Group. They are Magnetic Particle Inspected for Quality Control, and built to Mil-Spec standards throughout.
- MPN: TC556TIN-9310
20 months ago
The Griffin Armament Enhanced 5.56 Bolt Carrier Group is fully billet machined from premium materials and finished in a QPQ Melonite for improved lubricity and surface smoothness. The carrier is machined from 8620 steel and the bolt is machined from 9310 steel. The bolt is properly heat treated, shot peened, and ground after heat treat. The cam pin and extractor are machined from 4340 and features the latest 15,000 round extractor spring design with a Crane O-ring for long term reliability. The gas key is installed with Permatex and staked per military specifications.
- UPC: 791154081488
- MPN: GAEBCG
21 months ago
Manufactured by our finest domestic, Mil-Spec contractors these are among the best AR rifle bolts on the market and the same bolt carrier groups we use as the basis of our renowned custom rifles!
The bolt is precision machined from aerospace grade 9310 tool steel, shot peened for increased strength and includes a tool steel extractor and ejector, appropriate extractor spring, and is MPI (Magnetic Particle Inspected) and randomly batch HPT (High Pressure Tested).
The extractor is 4140 gun quality, annealed, cold drawn steel per the Mil-Spec.
- UPC: 810025500733
- MPN: TR-BCA-PNIB
21 months ago
,
by Dealer
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Delta Team Tactical
2433
21 months ago
Polished Nickel Boron Plated for easy cleanup and less lubrication
Bolt material is aerospace grade 9310 MPI inspected
Mil-Spec parts ensure a long service life
Machined ejector and extractor per mil specs
Weight: 9.08 oz
Drop in fit for any quality 5.56 case head based AR rifle (.223/5.56 NATO, .300 Blackout, .204 Ruger, 300 HAM’R or 7.62X40 WT)
21 months ago
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 harden-ability 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: TOOAUTO-010
21 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-0200
21 months ago
Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero. The AR-15 Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
- UPC: 881314861835
- MPN: FZ009-FZAR15-01-NH
22 months 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
22 months ago
This Toolcraft 308 / AR10 / 6.5 Creedmoor Black Nitride BCG is trusted by weapons manufacturers and custom rifle builders around the world. Now you too can get this outstanding BCG at a fraction of the cost.
22 months ago
This 9mm AR Rifle Carrier Group (BCG) is fully assembled and can fit into most 9mm AR platform rifles and pistols. FailZero 9mm BCG is compatible with Glock or Colt magazines.
Features:
- FZ 9MM BCG is compatible with both Glock and Colt style magazines.
- 8620 heat treated (same as Mil-Spec) AR Carrier
- EXO Nickel Boron Technology Coating
- Staked carrier guide (gas key)
- 5.56 Extractor
- Chrome Firing Pin
- UPC: 094922034946
- MPN: FZ-9mm-BCG
22 months ago
This 7.62x39mm Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
NOTE: In spite of the included Enhanced Firing Pin, light strikes may still occur when shooting TulAmmo or Golden Tiger ammunition due to excessive primer depth.
Features:
- 7.62x39mm compatible
- UPC: 094922034960
- MPN: FZ-7.62X39-01-NH
22 months ago
If LMT's standard bolt carrier group is the infantryman of the gun industry, then their enhanced BCG is the delta operator. This carrier group was designed to function effectively in full-auto, suppressed, and short barrel weapon systems, and it is made of materials far more durable than your standard fare. Quite simply, it’s the best possible upgrade for your rifle to increase reliability and functionality.
Behold the laundry list of enhancements our design brings to the table:
Carrier:
Altered cam path for longer dwell time and more robust extraction
- UPC: 815415010458
23 months ago
Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero. The M16 Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
- UPC: 881314861781
- MPN: 009-FZM16-4-01-NH
23 months ago
Description
FailZero Lightweight EXO Nickel Boron M16 / M4 5.56 Bolt Carrier Group
The First in Nickel Boron Coated BCG’s
This low mass BCG provides smoother operation and less recoil resulting in faster target reacquisition for quicker follow-up rounds. This is critical in competition shooting and actual tactical situations.
This FZ Lightweight BCG runs as great as it looks! Like all FailZero products it is easier to clean and maintain, and guaranteed for life.
Features
– 21% weight reduction from standard Mil-Spec carrier
– FZ logo engraved into the carrier
- UPC: 881314861897
- MPN: FZ-LW-BCG-01-NH
24 months ago
The Aero Precision EPC 9mm bolt is a fantastic option for your next pistol caliber AR build. Machined from high strength 8620 steel with a slick salt bath nitride finish, the EPC bolt carrier group provides a great combination of durability and reliability. For enhanced reliability, a fracture-resistant Grade 23 titanium firing pin has been included. Don't let your your bolt hold you back, get the EPC/AR9 bolt from Aero Precision
Features:
- Finish: Black Nitride
- Platform: AR-9
- Bolt Material: 8620 steel
- Titanium firing pin
- 4140 steel extractor
- MPN: APRH200083C
24 months ago
The Lantac Enhanced Bolt Carrier Group features a 8620 steel carrier coated with the NiB UCT EXO for excellent lubricity and corrosion resistance. The shot peened carpenter 158 bolt has been MPI tested and comes with a CP-R360 domed stainless steel cam pin that won't cause unnecessary wear to the cam channel. Enlarged forward porting with flared boss provides an increase lock time and smoother energy pulse when running a suppressed barrel. MIL-SPEC gas rings, chrome bore, gas key, gas key screws, and Grade 8 fasteners are all included.
Features:
- NiB UCT EXO coating
- UPC: 784672665339
- MPN: LA00223
24 months ago
,
by Dealer
Father’s Day Special – Nitride MPI 5.56/.223 Bolt Carrier Group (BCG)
Product Specs:
.233/5.56 NATO
Salt bath nitride finish
M16 cut
9310 steel carrier
Carpenter 158 steel bolt
4140 steel extractor
MIL-SPEC O-ring
MIL-SPEC gas rings
4140 steel cam pin
8740 steel firing pin with hard chrome finish
Magnetic particle inspected
Proudly made in the U.S.A.
KM Tactical
416
24 months ago
Lantac Full Auto Bolt Carrier Group .223/5.56 is machined from 8620 steel with a TiN (Titanium Nitride) finish. This BCG features shrouded forward-facing gas ports allowing the system to run with a smoother energy pulse. The tail of the carrier has a flared boss helping improve the lock position with the upper and increasing accuracy.
- MPN: LAN01UP556TINEBCG
24 months ago
DISCLAIMER:
This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.
Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available.
- MPN: FM-9BCG
25 months ago
Bolt Carrier Group Features This high quality bolt carrier group is a valuable addition to your AR15 build. Bolt Carrier Group Specifications No Aero 'A' Logo M16-cut carrier Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt) Carrier has forward assist serrations Black Nitride Finish - advanced lower friction coating that minimizes the need for lubricants and cleaning Properly staked gas key Shot peened HPT tested Black o-ring insert on extractor
MPN#: APRH100616C
UPC#: 840014606245
- UPC: 840014606245
- MPN: APRH100616C
25 months ago
$119.99
Aero Precision AR15 PRO Series Bolt Carrier Group Features The Aero Precision PRO 5.56 Bolt Carrier Group is built from the ground up to meet the demands of the most extreme conditions. Each component and manufacturing process of the PRO 5.56 Bolt Carrier Group was deliberately chosen to increase the reliable service life of the bolt carrier group and its components.
- UPC: 815421029949
- MPN: APRH101767C
25 months ago
Aero Precision EPC Bolt Carrier Group Direct Blowback 9mm Nitride Finish Black Fits AR9 Features: Aero APRH200060C: The Aero Precision EPC/AR9 Bolt is the core of any EPC build. Machined from 8620 steel and featuring a black nitride finish, fracture-resistant grade 23 titanium pin, and 4140 steel extractor and bolt guides, the EPC bolt assembly is precision machined from the ground up to meet the extreme demands of blowback AR platform firearms. This bolt also has a heavy duty extractor coil pin.
- UPC: 815421029437
- MPN: APRH101200C
25 months ago
,
by Dealer
Enhance the reliability of your bcg. Standard ar-15 / m4 / m16gas key with optimized carrier key screws from Michiguns. These specialized fasteners have extra grooves on the exterior, allowing for a better hold once the key is properly staked. Don’t want those jokers wobbling loose all Willy nilly after a bunch of rounds!
25 months ago
The Cross Machine Tool Co. complete bolt carrier group is a high quality upgrade for your next build. The carrier is machined from tough 8620 steel with a full mass M16/full auto for optimal reliability and strength. The 9310 steel bolt assembly is magnetic particle inspected. The complete assembly is ready to drop in to your favorite .223 Rem, .223 Wylde, 5.56 NATO, or 300 BLK build!
Features:
- 5.56 NATO / 300 BLK
- M16-cut 8620 Carrier
- 9310 Bolt Assembly
- Magnetic Particle Inspected
- Properly staked gas key
- Salt bath nitride finish
- Made in the U.S.A.
- MPN: CMT-M16-BCG-NITRIDE
26 months ago
WMDs Bolt Assembly - Optimized for performance. The bolt was engineered for NiB-X nickel boron coating to provide long life, ease of cleaning and superior locking and unlocking action with barrel extensions.Case hardened 9310, shot peened, magnetic particle inspected, with high-performance extractor, ejector springs, gas rings and special O-ring buffer. NiB-X coated bolt and extractor
Specifications for WMD Guns NIB-X Bolt Assembly:
Finish: NiB-X
Fabric/Material: 9310 Steel
1UX-ABA-BA4N-1-NIBXBA65
- MPN: 1-NIBXBA65
26 months ago
The Faxon Firearms 7.62x39 Bolt Carrier Group is designed for long lasting reliability. The Bolt itself is made out of 9310 tool steel and Nitride coated to increase surface hardness even more. Additionally, they are shot peened and magnetic particle inspected to ensure safe and reliable function for thousands of rounds. The locking lugs are chamfered by 45 degrees to improve lockup for improved function and reliability with high pressure rounds. The extractor is made from S7 steel, which is optimal for resisting the violent shock of pulling cartridges out of the chamber after being shot.
- MPN: FF76239GBCGCNITRIDE
26 months ago
,
by Dealer
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Features:
- All-Chrome Except for Phosphate Extractor
LUXE UPGRADES
- Sprinco 27001 Extractor Spring, 5-coil
- Sprinco Extractor Insert: Mil-Spec Black
- Sprinco 27001 Ejector Spring, Enhanced Chrome Silicon Moly Plated Cryogenic Processed
- OCKS Gas Key Fasteners
- UPC: 000000011013
- MPN: WC-LUXE-CR
26 months ago
,
by Dealer
Flash Sale Special – Nitride MPI 5.56/.223 Bolt Carrier Group (BCG)
Product Specs:
.233/5.56 NATO
Salt bath nitride finish
M16 cut
9310 steel carrier
Carpenter 158 steel bolt
4140 steel extractor
MIL-SPEC O-ring
MIL-SPEC gas rings
4140 steel cam pin
8740 steel firing pin with hard chrome finish
Magnetic particle inspected
Proudly made in the U.S.A.
We have released 250 more BCG's for this promotion
KM Tactical
602
27 months ago
,
by Dealer
Engraved 308 Nitride Bolt Carrier Group (BCG)
**Currently we are running a special on standing inventory while we are reorganizing our warehouse. The following engraved BCG’s are being sold below cost @ $74.99:
3%’er
American Flag
Join Or Die
Let’s Go Brandon
MAGA
We The People
Product Specs:
308 Caliber
Salt bath nitride finish
M16 cut
9310 steel carrier
Carpenter 158 steel bolt
4140 steel extractor
MIL-SPEC O-ring
MIL-SPEC gas rings
4140 steel cam pin
KM Tactical
332
28 months ago
Enhanced AR15/M16 Bolt Carrier Group Nitride.Full Auto Rated, Nitride Finish with Beveled Edges
Specifications for Andro Corp Industries AR15/M16 Bolt Carrier Group Nitride:
Color: Black
Finish: Nitride
Fabric/Material: 9310 Alloy, 8620 Alloy
Gun Make: AR Platform
Gun Model: M16, Ar-15
- UPC: 736684144470
- MPN: AR15BCGEN
28 months ago
,
by Dealer
Our premium quality BCG in a new crazy rainbow galaxy cosmic psychedelic purple haze oil slick multi color eye-catching finish! If you want a unique Ar15 bolt carrier group that will stand out, this one is for you.
- 8620 steel m16 auto carrier
- 9310 steel bolt
- heat treated
- MPI Tested
- PVD finish (similar to Titanium Nitride)
- Grade 8 fasteners
- Properly staked gas key
- 5.56/223
28 months ago
$156.90
DETAILS
FEATURES
Get the reliable Magpul PMAG 30 5.56x45 Magazine (MAG571-BLK) at Palmetto State Armory. Designed for flawless feeding and durability, this 30-round magazine is perfect for your AR-15 platform. Made with high-quality materials and featuring a black finish, it ensures reliable performance in any shooting scenario. Shop now for top-notch magazines for your firearm needs.
- MPN: BUN-122
28 months ago
,
by Dealer
Precision machined stripped Ar15 bolt, with DLC Diamond Like Carbon coating. The DLC has good hardness, durability, and low friction. Always a good idea to have a few spare bolts. At this price, it’s a no brainer.
28 months ago
Not all Nickel Boron is created equal and FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on FailZero.
The .224 Valkyrie Bolt Carrier Group is fully assembled and drop-in ready for most MIL-SPEC upper receivers. All critical parts are coated with EXO Nickel Boron technology providing permanent dry lubricity, extreme durability and increased wear and corrosion resistance. This patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
Features:
- M16 cut carrier
- UPC: 881314861804
- MPN: UHFZ224V01NH
28 months ago
TRYBE Defense has your back with the masterfully assembled TRYBE Defense Mil-Spec 5.56 Enhanced Complete Bolt Carrier Group. This superior bolt carrier is made of high strength AISI 8620 steel, precision-machined on Citizen Swiss CNC machines, and coated with nickel boron to reduce surface-to-surface friction and achieve optimal heat dissipation, allowing it to withstand repeated firing in any condition without threat of recoil. This also means that virtually no lubricant is needed on the bolt carrier group during use, and it will not peel, chip, or flake.
- UPC: 810030586166
- MPN: BCG-NB-ENH
28 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 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: 810030581444
- MPN: BCG308-QPQ
28 months ago
Are you looking for the best Bolt Carrier Groups on the market? Your friends at TRYBE Defense have your 6 with all the BCG components you need to build your own, including the TRYBE Defense Bolt Assembly built to Mil-Spec dimensions and coated in nickel boron to last for a lifetime of service.
- UPC: 810030586074
- MPN: TRDBOLTASNIB
28 months ago
Our premium quality BCG in a new crazy rainbow galaxy cosmic psychedelic purple haze oil slick multi color eye-catching finish! If you want a unique Ar15 bolt carrier group that will stand out, this one is for you.
- 8620 steel m16 auto carrier
- 9310 steel bolt
- heat treated
- MPI Tested
- PVD finish (similar to Titanium Nitride)
- Grade 8 fasteners
- Properly staked gas key
- 5.56/223
- MPN: blem oilslick bcg
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