A
AWright_87good not perfect
Reviewed on May 16, 2026Verified with Build
works great. wish the finish was matte instead of glossy
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Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate
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Aero Precision
Overview
The Aero Precision AR-15 Bolt Carrier Group is designed for 5.56 NATO caliber firearms, featuring a reliable black finish that enhances durability and corrosion resistance. This BCG is engineered to work seamlessly with various upper receivers, ensuring smooth cycling and optimal performance in your build. It's commonly found in mid-length gas system configurations, making it a solid choice for builders looking for reliability and consistency in their setups.
Specifications
MPNAPRH100019C
Caliber5.56 NATO
FinishBlack
Frequently Built With
Based on build data
Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
Magpul AFG-2 Angled Fore Grip - Black
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
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.
87.5%
AR-1587.5%
AR-1010%
AR-92.5%
CaliberBased on real build data showing which calibers builders choose alongside this product.
77.5%
5.56 NATO77.5%
.223 Wylde11.7%
300 Blackout9%
.308 Win0.9%
9mm0.9%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
51%
Mid-Length51%
Carbine25%
Pistol14.6%
Rifle8.3%
Blowback1%
| Product | Category | Times Built Together |
|---|---|---|
| Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers | 188 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 101 | |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | 88 | |
| Magpul AFG-2 Angled Fore Grip - Black | 88 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 79 | |
| Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock | 74 |
| Platform | Percentage |
|---|---|
| AR-15 | 87.5% |
| AR-10 | 10% |
| AR-9 | 2.5% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 77.5% |
| .223 Wylde | 11.7% |
| 300 Blackout | 9% |
| .308 Win | 0.9% |
| 9mm | 0.9% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 51% |
| Carbine | 25% |
| Pistol | 14.6% |
| Rifle | 8.3% |
| Blowback | 1% |
Builds Featuring This Part
See all 103 →Builds in the community that include the Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate
| Build | Parts | Total |
|---|---|---|
 | 10 | $3646.95 |
 | 9 | $645.95 |
 | 14 | $981.56 |
 | 13 | $831.40 |
 | 27 | $1871.42 |
 | 12 | $1441.10 |
 | 26 | $4497.70 |
 | 6 | $3764.91 |
 | 13 | $1370.78 |
 | 8 | $668.41 |
| 22 | $1388.49 |
| 29 | $3529.69 |
Customer reviews
4.5out of 5
4 global ratings
Top reviews
Z
zjebstewart11zbuild quality is there
Reviewed on May 16, 2026Verified with Build
cycles smooth right out of the box. carrier finish stays clean longer than my last one
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C
ch3mp3lAero BCG decent
Reviewed on May 7, 2026Verified with Build
C158 bolt, phosphate carrier, runs to spec. extractor spring tension was on the soft side from the factory, ejection was a touch lazy at 5 oclock on M193. swap to an enhanced extractor spring fixed it. for the price point a solid budget BCG
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S
Stanton01Aero C158
Reviewed on March 17, 2026Verified with Build
aero 5.56 BCG with C158 bolt, lockup is positive and the bolt face gauges in spec with my Forster set. phosphate finish is consistent, no thin spots near the gas key. aero logo is etched on the carrier side, subtle but present
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