Bolt Carriers Gun Parts
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4 hours ago
078-000-410WB M16 Bolt Carrier Group 5.56x45mm Titanium Nitride MP Cartridge: 5.56 mm NATO Finish: Titanium Nitride Add Aesthetic Durability to Your AR-15 Adding aftermarket components to an AR-15 doesn't have to be about practicality and utilitarianism. Sometimes, the look of a finished rifle plays into the selection of components. Get an eye-catching design in your rifle with the addition of the Brownells TiN M16 Bolt Carrier Group.
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12 hours ago
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 Carpenter Steel (Bolt) 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 High quality BCG PLATFORM AR15
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12 hours ago
Our upgraded .308/7.62 Nickel Boron BCG is an eye catching addition to your AR build. Mil- spec dimensions and coating ensure the highest quality and correct component interface. Features: Carrier is machined from 8620 steel Nickel Boron coated Bolt is machined from 9310 steel MPI Forward Assist serrations Weight: 17.92oz BCG Includes: Bolt carrier Complete bolt Firing pin Cam pin Retaining pin Nickel Boron coating by Fail Zero. Learn more about Fail Zero Nickel Boron Coating Services. Product Sku: APRH100185
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13 hours ago
Bolt Finish: Nitride Bolt Steel: 9310 Profile: Full Auto Profile Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec Bolt is Magnetic Particle Inspected (MPI) The PSA Freedom Nitride BCG is made with a 9310 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. SKU: 516446953 UPC#: 000516446953
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13 hours ago
Featuring our new Right To Bear Lightweight carrier, weighing in at approximately 6.8 Ounces, or 194.1 Grams for you lightweight build fanatics! Using our low mass Carrier creates less reciprocating mass moving back and forth inside the action, which reduces recoil significantly. Our lightweight carrier also allows proper cycling with less gas. When used in conjunction with an adjustable gas block & reduced power buffer spring, you can tune the gas way down, which will reduce muzzle rise and carbon build up.
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22 hours ago
This Toolcraft 308 Bolt Carrier Group is finished in Nickel Boron and is designed for use in DPMS pattern AR10 rifles chambered in the 308 family of calibers. It is a full auto BCG and has forward assist serrations.
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1 day ago
Faxon 9mm PCC Blowback Full-Mass Bolt Carrier Group Gen 2 Model The Faxon 9mm PCC Blowback Full-Mass Bolt Carrier Group in black nitride weighs in at 15.05 oz. This 9mm bolt carrier group features cuts to ensure both Glock and Colt style lower receiver compatibility. Also, the key is machined directly into the bolt carrier. The Faxon design allows full auto when using binary style trigger systems. Lastly, it looks awesome!
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1 day ago
San Tan Tactical Enhanced Bolt Carrier Group was designed for shooters who demand superior performance weapon components in the heart of their firearm. STT proudly manufacturers the highest quality firearms components in the industry.Carrier Assembly: The flared rear of the enhanced bolt carrier is designed to reduce carrier tilt/cant during recoil and increase reliability by strategically relocating key bearing surfaces. Made from Case-hardened 8620 steel.The STT enhanced carrier has fewer points of contact, resulting in less friction area.
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3 days ago
SKU: 35099 UPC: 35099 MFR#:   Milspec Carpenter No. 158® steel bolt Chrome Lined Carrier (AUTO profile) Chrome Lined Gas Key Gas Key Hardened to USGI Specifications Gas Key Grade 8 Hardened Fasteners Gas Key Staked Tool Steel Extractor Extractor Spring SKU 35099 5.56mm Full-auto profile Bolt Carrier Group For AR15 and M16 rifles and carbines. Made by a mil-spec contractor, these feature a Carpenter 158 Bolt, and a full profile chrome lined carrier.
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4 days 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. This BCG works great with any Colt style 9mm rifle and Colt pattern magazines. We highly recommend Metalform mags, which you can purchase here Colt Compatible USA made 8620 Steel Carrier Construction Phosphate Finish Heavy Firing Pin Retaining Spring 14.8 oz. SKU#: 9MM-BCG-C-PH
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4 days ago
Made in USA. Bolt is made of Mil-spec Carpenter 158 steel, Shot peened, High pressure tested and Mag Particle Inspected. Gas key is machined out of bar stock, chrome lined phosphate coated, and secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is phosphated outside and chrome lined inside. Laser engraved with the PSA logo. For packaging considerations, BCG will be packed dry. As a result, it will have a grey, dusty appearance that will turn black with the application of CLP or other preferred lubricant. Extractor Spring Black Extractor Insert Mil-Spec O-Ring
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4 days ago , by Dealer
AR/M16 Bolt Carrier Group – Chrome Phosphate – HPT/MPI Your bolt carrier group (BCG) is the lifeline of your AR-15. Designed for AR-15 and M16 builds, this group features high-end retaining and firing pin, gas key, and expert assembly, machined from 9310 alloy and laser engraved. The E2 bolt carrier group works better and provides longer lasting performance for your rifle build. BCG Includes: Bolt precision machined from 9310 alloy; carburized/case hardened & shot peened HP proof testing, 100% using a high pressure M197 or SAAMI commercial equivalent, without evidence of failure
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4 days ago , by Dealer
AR/M16 Bolt Carrier Group – Nitride Your bolt carrier group (BCG) is the lifeline of your AR-15. Designed for AR-15 and M16 builds, this group features high-end retaining and firing pin, gas key, and expert assembly, machined from 9310 alloy and laser engraved. The E2 bolt carrier group works better and provides longer lasting performance for your rifle build. BCG Includes: Bolt precision machined from 9310 alloy; carburized/case hardened & shot peened Ultrasonically cleaned and Nitrided Extractor, machined 4140 Tool steel alloy, hardened and Nitrided
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5 days ago
RISE Armament is committed to quality and success, and you can see that in their weapons. All RISE parts are manufactured according to strict AS9100 and ISO9001 2008 certified procedures, and must pass stringent QA inspection before leaving their facility.
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5 days ago
AR15 Toolcraft Nickel Boron BCG Simply the best 5.56 NATO NiB Bolt Carrier Group on the market! Available in either 9310 or C158 Steel Bolt.
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5 days ago
For sale is a brand new nitride bolt carrier group. Laser engraved with the US Flag!! This BCG is ready to drop in! BCG Specs: Bolt Material:9310 Steel Caliber Gauge:5.56 NATO Carrier Material:9310 Steel Carrier Carrier Style:M16 Bolt Carrier Magnetic Particle Inspected
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5 days ago
The Precision Defense 9mm Bolt Carrier Group is designed specifically for blowback AR-15 pistol caliber carbines. Because of the blowback system, no rotating locking lugs or gas key is necessary like a traditional AR-15 weapon system. What keeps this bolt closed is simply the pressure of the recoil spring and the weight of the bolt is what keeps it closed long enough for the bullet to leave the barrel. The body of this 9mm BCG is machined from 8620 steel with a salt bath Nitride finish for its slick and durable properties.
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5 days ago
100-039-478WB M16 Bolt Carrier Group 7.62x39 Nitride MP Cartridge: 7.62 x 39 mm Finish: Black Description Specs This is a Nitride QPQ 7.62x39 Bolt Carrier group fully assembled and ready to drop into your rifle. Everything on this Bolt Carrier Group is machined complete all to Mil-Spec standards and hardened to USGI Specifications. - 8620 Steel Carrier Nitride QPQ - 9310 Arc-Vac Steel 7.62x39 Bolt Nitride QPQ - Tool Steel Extractor Nitride QPQ - 4140 Steel Gas Key Nitride QPQ - 4340 Steel Cam Pin Nitride QPQ - Gas Key is staked to Mil-Spec Standards
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6 days ago
Technical Specs: • Gas system: Direct Impingement • Caliber: 5.56x45mm NATO/.223 Rem, .300 Blackout • Finish: Salt Black Nitride • Bolt: 9310 Alloy Steel (High Hardness) • Carrier: 8620 Aircraft Grade Steel • Extractor: Shot Peened and Case Hardened D2 Tool Steel • Firing Pin: Mil-spec 8740 steel with hard chrome finish • Gas Key: Mil-Spec w/ properly staked Grade-8 screws & Permatex No. 3 sealed • Cam Pin: 8620 Steel w/ Black Nitride Finish • Quality Control: MPI Inspected for QC ADDITIONAL INFORMATION WEIGHT 0.0000 oz BOLT FINISH
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1 week ago
AO Precision Premium Mil-Spec Phosphate Bolt Carrier Group - 158 HPT/MPI BCGThese Military surplus 158 Bolt carrier groups are manufactured by AO Precision to the exacting standards of the US Military. AO makes these HPT / MPI BCG's for other Military contractor juggernauts, such as FN America. All bolts are rigorously inspected and are individually High Pressure Tested and then go through a Magnetic Particle Inspection.
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1 week ago
Aero Precision 5.56 Nickel Boron Bolt Carrier Group Manufactured in the USA by Aero Precision
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1 week ago , by Dealer
AR/M16 Bolt Carrier Group – Nickel Boron – HPT/MPI Your bolt carrier group (BCG) is the lifeline of your AR 15. Designed for AR-15 and M16 builds, this group features high-end retaining and firing pin, gas key, and expert assembly, machined from 9310 alloy and laser engraved. The E2 bolt carrier group works better and provides longer lasting performance for your rifle build. BCG Includes: Bolt precision machined from 9310 alloy; carburized/case hardened & shot peened HP proof testing, 100% using a high pressure M197 or SAAMI commercial equivalent, without evidence of failure MPI test
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1 week 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.
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1 week ago
The Zev Technologies .308 Bolt Carrier Group for DPMS barrels is built for durability. It features a 9310 tool steel bolt face and chrome lined internals to withstand high pressures and reduce the amount of erosion for long term reliable use. The carrier itself is made from 8620 steel and the entire AR-10 BCG is Manganese Phosphate to prevent corrosion and promote oil absorption. The gas key internals are also chrome lined and it is staked to the carrier with grade 8 screws. This Zev Technologies AR-10 Bolt Carrier Group is a great option for your next battle rifle build. Features:
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1 week ago , by Dealer
Arm or Ally carries a full line of Toolcraft AR15 compatible bolt carrier groups (also AR10 compatible BCG as well). Check out the full line up of available calibers and coatings (Black Nitride, Nickel Boron and DLC/Ion Bond). Toolcraft is a major OEM manufacturer for the U.S. Military and many large rifle companies. Forgo the fancy logo at a $40 premium, and have confidence it’s 100% made in the USA (North Carolina). What’s more? Toolcraft has your back with their “no questions asked” Lifetime Warranty. Get on the boat! Calibers Available: 556/223 9mm 6.5 Grendel 6.8 SPC
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Arm or Ally 139112
1 week ago
Odin Works 6.5 Grendel Type 2 Black Nitride Bolt Carrier Group Bolt Finish: Salt Bath Nitride Bolt Material: 9310 Steel Brand: Odin Works Caliber Gauge: 6.5 Grendel Carrier Finish: Salt Bath Nitride Carrier Material: 9310 Steel Carrier Carrier Style: M16 / Full Auto Gas Key: Staked High Pressure Tested: yes Magnetic Particle Inspect: Yes SKU#: ACC-6.5-BCG
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1 week ago
Description This Toolcraft 308 Bolt Carrier Group is finished in Nickel Boron and is designed for use in DPMS pattern AR10 rifles chambered in the 308 family of calibers. It is a full auto BCG and has forward assist serrations.
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1 week ago
100-020-758WB M16 Bolt Carrier Group & $10 Gift Card Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout Finish: Black View Dream Gun Description Specs
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1 week 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.
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1 week ago
078-000-405WB M16 Lightweight Bolt Carrier Group 5.56x45mm Nickel Boron Cartridge: 5.56 mm NATO Finish: Nickel-Boron Designed for Lightweight, Low-Recoil Rifles The Brownells M16 Lightweight Bolt Carrier Group is purpose-built for AR-15 owners looking to improve aspects of their rifle with a simple component swap, eliminating the need for major component replacement or amateur gunsmithing work.
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2 weeks ago
078-102-001WB M16 Bolt Carrier Group 5.56x45mm Nitride MP Cartridge: 5.56 mm NATO Finish: Black Nitride Description Specs Reliability for the Discerning Operator The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington.
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Brownells 144
2 weeks 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
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2 weeks 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
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2 weeks ago
NOTE: All BCM bolt carrier groups are factory test fired. The BCG may show handling marks consistent with these quality control procedures. The Bravo Company Manufacturing Bolt Carrier Group, with a parkerized exterior and chrome lined carrier interior, has been machined to USGI specifications. This M16/M4 carrier includes a properly staked gas key which has also been chrome lined, heat treated per MIL-SPEC, and secured to the carrier with grade 8 fasteners. Features: - MIL-SPEC carpenter no. 158 steel (bolt) - High pressure tested and magnetic particle inspected
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2 weeks ago
The Expo Arms Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a slick, corrosion resistant nickel boron 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: - .223/5.56 NATO - Nickel boron finish - M16 cut - Aircraft quality 8620 steel carrier - 4130 steel gas key
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3 weeks ago , by Dealer
Use code: USA25 for this price - The Sharps Xtreme Performance Bolt (XPB) with DLC (Diamond Like Carbon) Coating; extreme hard coating and scratch resistance. In addition, the new bolts have gone through a 24-hour thermal cycle proprietary heat treatment. Technical Data Bolt: S7 Tool steel, shot peened and DLC coated Extractor: 4340 Steel, Manganese Phosphate coated Ejector: S7, shot peened and Manganese Phosphate coated Extractor Pin: S7, shot peened and Manganese Phosphate coated Mil-Spec Extractor and Ejector Springs, Gas Rings Batch MPI and HPT tested
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3 weeks ago , by Dealer
Our solid, reliable m16 bolt carrier group with an enhanced low friction high durability coating.  This is just what you need to make your ar15 build your own. Select your coating and caliber.   Available colors: - Oilslick Rainbow / Chameleon - Titanium Nitride / Gold - Copper / Bronze - Graphite - Blue - Rose Gold - FDE - AlTiN - Violet/Black   BCG Features: - 8620 m16 Carrier - 9310 bolt, MPI Tested, Nitrided - staked gas key, enhanced extractor spring - quality and guaranteed performance Choose your caliber
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3 weeks ago , by Dealer
GM Bolt carrier groups come MPI inspected. Perfect for your next 7.62x39 AR-15 build. Specifications: Brand GORILLA MACHINING Caliber / Gauge 6.5 Grendell Type 2 Carrier Style Standard Platform AR-15 Bolt Finish Parkerized Bolt Material 9310 Steel Carrier Finish Black Nitride Gas Key Staked Magnetic Particle Inspection Yes
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3 weeks ago
Description This is a blem bcg. Most companies would probably not call this a blem but we want them to be perfect. The finish is so mirror like that you can see every  machine mark. There is no warranty or returns of this product   The enhanced bolt carrier is designed to reduce carrier tilt/cant during recoil and increasing reliability by strategically relocating key bearing surfaces. The enhanced carrier has fewer points of contact resulting in less friction area and the slight increase in carrier mass extends dwell time and ensures proper gas pressures for reliable extraction.
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3 weeks ago , by Dealer
Use code: USA25 (25% off sitewide) *Check out our other Featured Deals! - http://sunnystateoutdoors.com/collections/featured-items - 9mm M16 Bolt Carrier Group. Ramped and compatible with standard hammers. Nitride QPQ treated 8620 steel. Compatible with lower receivers cut for Colt 9mm magazines and Glock magazines. Made in the USA, Lifetime warranty! Fast, free shipping.
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1 month ago
Toolcraft Inc. is an OEM manufacturer of bolt carrier groups trusted by the U.S. Military and civilian markets alike. ToolCraft BCG’s carry a lifetime no questions asked warranty. ToolCraft manufactures this BCG using a proprietary blend of 8620 aircraft steel which they claim to be the “Best Aircraft Quality Steel” on the market today!
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1 month ago , by Dealer
GM Bolt carrier groups come MPI inspected. Perfect for your next 350 legend/300AAC/5.56/.223 AR-15 build. Specifications: Brand GORILLA MACHINING Caliber / Gauge .223 Wylde/5.56/300AAC/350 legend M16 Carrier Style Standard Platform AR-15 Bolt Finish Mag Phosphate Bolt Material 9310 Steel Carrier Finish Mag Phosphate Gas Key Staked Magnetic Particle Inspection Yes
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1 month ago
Manufacturer: Davidson Defense Cailiber: 450 Bushmaster, 458 Socom Color: Black Finish: Nitride MPN#: 6541
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1 month ago
Manufacturer: Davidson Defense Caliber: 6.8 SPC/.224 Valkyrie Bolt: Made From 9310 Steel, Type 2 Bolt Face Color: Black Finish: Nitride
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1 month ago
Toolcraft Black Nitride .458 Socom Bolt Carrier Group - MPI This 458 Socom black nitride BCG from Toolcraft is a popular choice for AR-15, M4 and M16 builds due to its mil-spec design and lifetime warranty. The bolt is made from enhanced 9310 steel while the carrier is made from 8620 tool steel.
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1 month ago
Quick Overview SKU: 516446914 UPC: 516446914 MFR#: 516446450 Caliber: 5.56/.223 Finish: Nickel Boron Coating Bolt Steel: Milspec Carpenter No. 158 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
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1 month ago
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.
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1 month 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
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1 month ago , by Dealer
9MM BOLT CARRIER GROUP Complete, drop-in carrier/bolt assembly is ramped on the bottom to provide clearance for a factory .223/5.56mm hammer in your 9mm conversion. Eliminates the need to install a dedicated 9mm hammer, so the original fire control system stays intact for easier conversion back to original caliber. Precision machined from high-grade ordnance steel, the one-piece design combines bolt and carrier as a single unit to provide outstanding strength, durability, and reliability. Includes a staked-on carrier key. Titanium Nitride Finish
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1 month ago
If you are looking to build an AR-15 for hard use, to standards that exceed Mil-Spec expectations, then look no further than Sons of Liberty Gun Works. Every component of this bolt carrier group has been properly heat treated and is designed for reliability and longevity. The carrier is machined from AISI 8620 aircraft quality steel and features a full auto profile with durable manganese phosphate coating. The bolt is made from Carpenter Technology No. 158 Alloy and has been magnetic particle inspected as well as high pressure tested to ensure that it will run for many years to come.
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1 month 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 .45 ACP 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. Features:
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1 month ago
Quick Overview SKU: 516446450 UPC: 516446450 MFR#: 516446450 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 PSA Logo Nickel boron coated full-auto profile bolt carrier group.  Milspec Carpenter No. 158® steel bolt Shot Peened Bolt High pressure tested Mag particle inspected Gas Key Hardened to USGI Specifications
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1 month ago , by Dealer
Finally back in stock and ready to ship! Take 25% off w/ code: LD25 - Free shipping on All Orders! Also available in Black Diamond Like Carbon coating https://sunnystateoutdoors.com/collections/featured-items/products/sharps-xpb-bolt-carrier-group-5-56-w-dlc-diamond-like-coating - The Sharps XPB Bolt Carrier Group Complete FDE is precisely machined from S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment and is finished with ZrN (Zirconium Nitride) Coating. Includes Sharps Lifetime Warranty!
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1 month ago
Item #: superman blue red bcg MSF blue Bolt Carrier Group and Red Extended latch charging handle.  If you Like red and blue and America, this set is for you!
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1 month ago
Quick Overview free shipping Free Shipping applies to this item only and not the entire order. 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
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1 month ago
078-000-385WB BRN-10 Bolt Carrier Group Chrome MP Cartridge: 308 Winchester Finish: Chrome Flavors Your .308 With a Bit of Old-School Flavor, Plus The Convenience of Modern Parts Compatibility The BRN-10 Retro Bolt / Carrier Group from Brownells is styled to replicate the BCG on Eugene Stoner’s original ArmaLite® AR-10® rifle of the late 1950s - the original AR-pattern rifle. It is the ideal component to add an extra level of period detail and authenticity to a "retro" rifle build - especially if you’re using the Brownells BRN-10 upper receiver.
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Brownells 920
1 month ago
100-027-615WB AR-15 FM-9 Colt Bolt Carrier Assembly 9mm Black Cartridge: 9 mm Luger Finish: Black Designed to Work in Your Pistol-Caliber Carbine One of the essential components of an AR-style pistol-caliber carbine is the use of a purpose-built bolt that can accommodate the unique internal setup of these blowback firearms. The FM Products AR-15 FM-9 Bolt Carrier Assembly is modeled after similar Colt-style BCGs on the market in order to ensure consistent, reliable function.
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1 month ago
Description Complete Bolt Carrier Group for 6.8SPC/224 Valkyrie Bolt: 9310 Steel, Phosphate Finish, 6.8SPC/224 Valkyrie Bolt Carrier: 8620 Steel, Chrome Lined, Phosphate Finish Extractor: 4140 Steel, Phosphate Finish Weight: .9lbs
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1 month ago
The Radical Firearms 5.56 NATO / 300 BLK Gen 2 Bolt Carrier Group features an M16 pattern 8620 tool steel carrier with 9310 alloy steel bolt and shot-peened for increased surface strength and durability. Each bolt is equipped with an extractor booster to ensure reliable cycling during rapid semi-auto or full-auto fire. A properly staked gas key prevents gas leakage that can lead to short stroking. Each assembly is magnetic particle inspected to ensure it is free from defects that can lead to premature failures.
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1 month ago , by Dealer
Our solid, reliable m16 bolt carrier group with an enhanced low friction high durability coating.  This is just what you need to make your ar15 build your own.  Awesome blue color that changes depending on oilyness & lighting.  varies from dark/light blue to purply.   BCG Features: - 8620 m16 Carrier - 9310 bolt, MPI/HPT Tested, Shot Peened, Nitrided - staked gas key, grade 8+ fasteners, enhanced extractor spring with oring - Quality and guaranteed performance - Made in USA by a quality manufacturer - Lifetime warranty on functionality, (normal wear and tear excluded)
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