BCM .625 low profile gas block is well machined steel for pencil profile barrels. Set screws engage cleanly into the dimple. Black phosphate finish matches BCM barrels. Sits low enough to fit under any free float handguard.




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Bravo Company
Overview
The Bravo Company AR-15/M16 .625 Low-Profile Gas Block is designed to provide reliable gas flow in your mid-length gas system while keeping the overall profile of your build sleek and unobtrusive. With a diameter of .625 inches, this gas block fits seamlessly with your barrel, ensuring consistent cycling and performance. Made from durable steel and finished with a phosphate treatment, it stands up to the rigors of use, making it a solid choice for builds chambered in 5.56 NATO.
Based on build data

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Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Bravo Company M16 Bolt Carrier Group Black | 5 | |
| Aero Precision Ar-15 Ejection Port Cover Assembly | 5 | |
| Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4 | 4 | |
| Sons of Liberty Gun Works Ar-15 Gas Tube Stainless Steel Carbine | 3 | |
| Aero Precision Stainless Steel Gas Tube - Mid-Length | 3 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 3 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 100% |
Builds in the community that include the Bravo Company Ar-15/m16 .625 Low-Profile Gas Block
| Build | Parts | Total |
|---|---|---|
![]() | 14 | $3158.75 |
![]() | 13 | $1268.26 |
![]() | 27 | $2017.24 |
![]() | 27 | $2985.61 |
![]() | 9 | $1190.96 |
![]() | 16 | $1165.92 |
![]() | 12 | $962.47 |
![]() | 28 | $3951.39 |
![]() | 26 | $4008.42 |
![]() | 14 | $1106.46 |
2 global ratings
BCM .625 low profile gas block is well machined steel for pencil profile barrels. Set screws engage cleanly into the dimple. Black phosphate finish matches BCM barrels. Sits low enough to fit under any free float handguard.
BCM low profile gas block in .625 diameter for lightweight barrels. set screws hold position under sustained fire. phosphate finish matches a phosphate FSB area. sits flush under a free float rail with clearance