This 6mm ARC Grendel Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6mm ARC. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity extreme durability and increases both wear and corrosion resistance. EXO Nickel Boron makes for easy cleanup and will improve the performance of your rifle.
Nickel Boron treated parts include:
- 6mm ARC Bolt & Extractor
- M16 Cut Bolt Carrier
- Cam Pin
- Carrier Key
- Firing Pin
This 7.62×39 Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil-spec upper receivers chambered in 7.62×39. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity extreme durability and increases both wear and corrosion resistance. EXO Nickel Boron makes for easy cleanup even with the corrosive 7.62×39 ammo and will improve the performance of your rifle. The bolt keeps the Mil-Spec length for a more reliable bolt. The Extractor hardware includes a heavy spring silicone insert and o-ring to give better extraction tension. Included is a Black Rifle Arms Enhanced Firing Pin that has a longer length as well as other dimensional changes beyond overall length for better performance without over penetration. Due to the Mil-Spec bolt length and enhanced firing pin you can shoot most Russian ammo including Tula.
Note: Tula Ammunition and Golden Tiger have issues where some primers are set too far in and will still cause light strikes even with an Enhanced Firing Pin.
Nickel Boron treated parts include:
- Bolt & Extractor (7.62×39 compatible)
- M16 Cut Bolt Carrier
- Cam Pin
- Carrier Key
FEATURES
-Bolt & Extractor (.224 Valkyrie & 6.8 SPC compatible)
-M16 Cut Bolt Carrier
-Cam Pin
-Carrier Key
-Firing Pin
| PRODUCT SPECIFICATIONS: | ||
| Dimension | 1.60 X 3.80 X 10.95 | |
| Height | 1.6000 | |
| Width | 3.8000 | |
| Length | 10.9500 | |
| TYPE/COLOR | AR15 COMPLETE BOLT CARRIER | |
| SIZE/FINISH | .224 VALKYRIE/CLASSIC FINISH | |
| MATERIAL | STEEL | |
| OTHER FEATURES: | EXO NICKEL BORON TREATED, | |
| DROP IN INSTALL FOR MOST | ||
| MIL-SPEC .224 VALKYRIE | ||
| UPPERS | ||
| NO DIRECT SHIP TO CALIFORNIA | ||
FEATURES
-Bolt & Extractor (5.56/.223 compatible)
-Bolt Carrier
-Extractor
-Cam Pin
-Carrier Key
-Firing Pin
| PRODUCT SPECIFICATIONS: | ||
| Dimension | 1.65 X 3.80 X 10.30 | |
| Height | 1.6500 | |
| Width | 3.8000 | |
| Length | 10.3000 | |
| TYPE/COLOR | AR15 COMPLETE BOLT CARRIER | |
| SIZE/FINISH | 5.56MM/CLASSIC FINISH | |
| MATERIAL | STEEL | |
| AR-15 ACCESSORY | Y | |
| OTHER FEATURES: | SEMI-AUTO BCG, | |
| EXO NICKEL BORON TREATED, | ||
| DROP IN INSTALL FOR MOST | ||
| MIL-SPEC AR15 UPPERS | ||
| NO DIRECT SHIP TO CALIFORNIA | ||
FEATURES
-Bolt & Extractor (5.56/.223 compatible)
-Bolt Carrier
-Extractor
-Cam Pin
-Carrier Key
-Firing Pin
-Black
| PRODUCT SPECIFICATIONS: | ||
| Dimension | 1.65 X 3.80 X 10.80 | |
| Height | 1.6500 | |
| Width | 3.8000 | |
| Length | 10.8000 | |
| TYPE/COLOR | AR15 COMPLETE BOLT CARRIER | |
| SIZE/FINISH | 5.56MM/BLACK | |
| MATERIAL | STEEL | |
| AR-15 ACCESSORY | Y | |
| OTHER FEATURES: | SEMI-AUTO BCG, | |
| EXO NICKEL BORON TREATED WITH | ||
| BLACK TOPCOAT/EXTERIOR, | ||
| DROP IN INSTALL FOR MOST | ||
| MIL-SPEC AR15 UPPERS | ||
| NO DIRECT SHIP TO CALIFORNIA | ||
FEATURES
-Bolt & Extractor (6.8 SPC compatible)
-M16 Cut Bolt Carrier
-Cam Pin
-Carrier Key
-Firing Pin
| PRODUCT SPECIFICATIONS: | ||
| Dimension | 1.55 X 3.80 X 10.50 | |
| Height | 1.5500 | |
| Width | 3.8000 | |
| Length | 10.5000 | |
| TYPE/COLOR | AR15 COMPLETE BOLT CARRIER | |
| SIZE/FINISH | 6.8SPC/CLASSIC FINISH | |
| MATERIAL | STEEL | |
| OTHER FEATURES: | EXO NICKEL BORON TREATED, | |
| DROP IN INSTALL FOR MOST | ||
| MIL-SPEC 6.8SPC UPPERS | ||
| NO DIRECT SHIP TO CALIFORNIA | ||
FEATURES
-Bolt & Extractor (5.56/.223 compatible)
-Lightweight Bolt Carrier
-Extractor
-Cam Pin
-Carrier Key
-Firing Pin
| PRODUCT SPECIFICATIONS: | ||
| Dimension | 1.65 X 3.80 X 10.65 | |
| Height | 1.6500 | |
| Width | 3.8000 | |
| Length | 10.6500 | |
| TYPE/COLOR | AR15 COMPLETE BOLT CARRIER | |
| SIZE/FINISH | 5.56MM/CLASSIC FINISH | |
| MATERIAL | STEEL | |
| AR-15 ACCESSORY | Y | |
| OTHER FEATURES: | SEMI-AUTO BCG, | |
| EXO NICKEL BORON TREATED, | ||
| DROP IN INSTALL FOR MOST | ||
| MIL-SPEC AR15 UPPERS, | ||
| LIGHTWEIGHT 21% LIGHTER | ||
| NO DIRECT SHIP TO CALIFORNIA | ||
The Fail Zero complete bolt carrier is the BCG that you want to put in your rifle. The Fail Zero BCG's are assembled and ready to drop into your mil-spec upper receiver. This particular version is the full auto carrier which features a standard black nitride coating. All criticl parts are Black Salt Bath Nitride Finished in order to provide enhanced durability and increases the overall life for both wear and corrosion resistance. Additionally noteworthy is the fact that this unit comes with a firing pin which features a chrome finish.
This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16 M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity extreme durability and increases both wear and corrosion resistance. Our patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
Nickel Boron treated parts include:
- Bolt & Extractor (5.56/.223 compatible)
- Bolt Carrier
- Extractor
- Cam Pin
- Carrier Key
- Firing Pin