Geissele Reliability Enhanced Bolt Carrier Group 5.56 NATO Chrome Lined Nano Coated Gas Key
User Ratings
No ratings yet
Be the first to review this product
Reliability Enhanced Bolt Carrier and Gas Key\n\n- 5.56 mm full-mass bolt carrier group for M16/M4 platforms\n- Full-auto rated design\n- Chrome lined gas key, properly torqued and staked\n- Nano coated with Nanoweapon coating for increased durability\n- Extended upper rails on the carrier to improve feeding reliability
Specifications
- Manufacturer:
- Geissele Automatics
- Category:
- bolt-carrier-group
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- UPC:
- 810081133517
- MPN:
- 05-489
- Required Component:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
Current
$118.00
Lowest
$118.00
Highest
$118.00
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertSimilar Products
BCM MPI Bolt Carrier Group, M16 Profile, Black
Bravo Company Manufacturing (BCM)
$238.99
PSA Freedom AR-15 Nitride Bolt Carrier Group With Carpenter 158 Bolt
Palmetto State Armory
$99.99
BCM MPI Bolt Carrier Group, M16 Profile, Flat Dark Earth
Bravo Company Manufacturing (BCM)
$267.99
Microbest PSA Fathers of Freedom 5.56 Full-Auto Phosphate Bolt Carrier Group
Microbest
$134.95
Aero Precision 5.56 Complete Bolt Carrier Group, Nickel Boron (APRH100071C)
Aero Precision
$188.99
Toolcraft Logo'd Premium 5.56 Nickel Boron Bolt Carrier Group, Carpenter 158 Bolt
Toolcraft
$119.99
Sons of Liberty Gun Works 5.56 NATO AR-15 Bolt Assembly, Black
Sons of Liberty Gun Works
$104.07
Toolcraft Non-Logo Premium 5.56 Nickel Boron Bolt Carrier Group, Carpenter 158 Bolt
Toolcraft
$109.99
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
.308 Win vs. 6.5 Creedmoor for AR-10 Builds
A technical comparison of .308 Winchester and 6.5 Creedmoor for AR-10 platform builds — covering ballistics, recoil, parts availability, and which cartridge fits which use case.
5 min read
Guide
AR-10 Receiver Patterns: DPMS vs. Armalite Compatibility
The AR-10 has two incompatible receiver patterns — DPMS and Armalite — that look similar but do not share parts. This guide explains the differences and how to buy correctly.
6 min read
Guide
The AR-10 Platform: What It Is and How It Differs from the AR-15
A practical overview of the AR-10 — its origins, how it differs from the AR-15, available calibers, and when it makes more sense than a standard AR-15 build.
6 min read