Cryptic AR15/M16/M4 6.5mm Creedmoor Bolt Carrier Group Chrome Black Nitride
$185.99 at OpticsPlanet
In stock Sale
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group Left Handed Nickel Boron
No ratings yetBest price
$185.25at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- Cryptic AR15/M16/M4 6.5mm Creedmoor Bolt Carrier Group Chrome B… $185.99at OpticsPlanet
- Cryptic Bolt Carrier Group BCG - Complete .308 WIN/7.62x51mm Ma… $180.99at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $185.25Salechecked Oct 22, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar bolt carrier groups in stock
This part is out of stock at every store we track. These similar bolt carrier groups are in stock, with today's prices.
Cryptic Bolt Carrier Group BCG - Complete .308 WIN/7.62x51mm Magnese Phosphate
$180.99 at OpticsPlanet
In stock Sale
Price history
Dashed line = out of stock. Tracking since Oct 18, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $185.25 | $185.25 | $185.25 |
Since Oct 18, 2026.
About this part
The Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group Left Handed Nickel Boron is an AR-15 bolt carrier group from Cryptic. One store lists it, OpticsPlanet at $185.25.
Fits and works with
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Specifications
- Manufacturer
- Cryptic
- Platform
- AR-15
- Caliber
- 300 Blackout
- Finish
- Nickel Boron
- Material
- Steel
From the manufacturer
Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group Left Handed Nickel Boron. BCG includes heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This ensures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158 steel and shot peened for increased strength per Mil-Spec; includes tool steel extractor with spring and viton O-ring; firing pin chromed finished with firing pin retaining pin and cam pin. HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected). Specifications for Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group: Manufacturer: Cryptic Finish: Matte Caliber: .300 AAC Blackout .223 Remington Gun Make: AR Platform Gun Model: M16 M4 AR-15 Features of Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group Mil-Spec BCG Machined from 8620 Aircraft Quality Steel and heat treated to 60-61 RC Mil- Spec Gas Key Key Staked with Grade 8 Screws per Mil-Spec Mil-Spec Carpenter 158 Bolt w/ Spring and Ejector Tool Steel Extractor w/ Spring and viton O-ring Mil-Spec Firing Pin w/ Chrome Finish Mil-Spec Cam Pin Full Auto Carrier (Backward compatible with all semi-auto rifles) Package Contents: Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group What firearm models does the manufacturer say Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group is compatible with? The manufacturer says that Cryptic AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group is compatible with AR-15 M4 M16Cryptic CC-0105-LH: AR15/M16/M4 .223/5.56/.300 AAC Blackout Bolt Carrier Group Left Handed Nickel Boron
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