J
JacobT2002best buy yet
Reviewed on March 12, 2026Verified Purchase
ran 500 rounds zero issues
|
Geissele Automatics Llc Reliability Enhanced Bolt Carrier Group 5.56mm
Click to see full view
Geissele
Overview
The Geissele Automatics Reliability Enhanced Bolt Carrier Group is designed specifically for the 5.56 NATO caliber and features an M16 style bolt carrier. This BCG enhances reliability through its robust design, ensuring consistent operation and improved performance in various conditions. It is commonly found in mid-length gas system builds, making it a solid choice for those looking to optimize their 5.56 NATO rifles.
Specifications
MPN05-490
StyleM16 Bolt Carrier
Caliber5.56 NATO
FinishBlack
Available Merchants(3)
Stock Alert
Log in to get notified when this product is back in stock.
Frequently Built With
Based on build data
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
Lmt Mars-Ls Pdw Complete Ambidextrous Ar-15 Lower Receiver
EOTech XPS2 Holographic Sight, Tan - XPS2-0TAN
Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger
Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H3 - Ddc
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
100%
AR-15100%
CaliberBased on real build data showing which calibers builders choose alongside this product.
78.3%
5.56 NATO78.3%
.223 Wylde17.4%
.308 Win4.3%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
57.9%
Mid-Length57.9%
Carbine31.6%
Rifle10.5%
| Product | Category | Times Built Together |
|---|---|---|
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | 18 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 17 | |
| Lmt Mars-Ls Pdw Complete Ambidextrous Ar-15 Lower Receiver | 10 | |
| EOTech XPS2 Holographic Sight, Tan - XPS2-0TAN | 9 | |
| Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger | 9 | |
| Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H3 - Ddc | 9 |
| Platform | Percentage |
|---|---|
| AR-15 | 95.8% |
| AR-10 | 4.2% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 78.3% |
| .223 Wylde | 17.4% |
| .308 Win | 4.3% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 57.9% |
| Carbine | 31.6% |
| Rifle | 10.5% |
Builds Featuring This Part
See all 13 →Builds in the community that include the Geissele Automatics Llc Reliability Enhanced Bolt Carrier Group 5.56mm
| Build | Parts | Total |
|---|---|---|
 | 12 | $3098.91 |
 | 32 | $6028.45 |
 | 11 | $3376.28 |
 | 9 | $3250.89 |
 | 28 | $2989.76 |
 | 11 | $1775.97 |
 | 17 | $1731.80 |
 | 19 | $2376.14 |
 | 9 | $3699.20 |
 | 11 | $1369.79 |
 | 12 | $1572.94 |
 | 17 | $6287.42 |
Customer reviews
5.0out of 5
1 global rating