Geissele Automatics Geissele 5.56mm Reliability Enhanced Bolt Carrier Group & Gas Key 05-2992
Click to see full view
Geissele
Overview
The Geissele 5.56mm Reliability Enhanced Bolt Carrier Group is designed specifically for the 5.56 NATO caliber, ensuring optimal performance and reliability in your AR-15 build. This BCG includes a precision-engineered gas key that enhances gas flow and cycling, contributing to smoother operation and reduced wear over time. Builders often select this component for high-performance setups where reliability and consistent cycling are critical.
Specifications
Geissele Automatics Geissele 5.56mm Reliability Enhanced Bolt Carrier Group & Gas Key 05-2992
August 2026 on GunPartPicker
Geissele Automatics Geissele 5.56mm Reliability Enhanced Bolt Carrier Group & Gas Key 05-2992 ranked #77 of the 229 bolt carrier groups builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since June 2026. All time, it ranks #35 of the 432 bolt carrier groups builders have added. Builds with this bolt carrier group are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
Today 2 of the 3 retailers we track have it in stock. Buying today, the lowest price is $148 at Optics Planet.
Trending bolt carrier groups →
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
Not sure which bolt carrier group to pick?
We ranked every bolt carrier group by how often it shows up in real builds on GunPartPicker.
Read the guide: The Most Trusted AR-15 BCGs →Frequently Built With
The part most often added in each category by the 16 builds that include this one
PSA AR-15 Built Stealth Upper Receiver - No T Marks - 516444539
Geissele Automatics Airborne Charging Handle Black
PSA AR-15 "Stealth" Stripped Lower Receiver
FN AR-15 M16 Barrel 16 Mid-Length 5.56mm
Geissele Automatics Super Semi-Automatic Enhanced SSA-E Two Stage AR-15 Trigger .154"
Sons of Liberty Gun Works AR-15 Gas Tube Stainless Steel Mid-Length
No reviews yet. Be the first to review this product!