Bravo Company Gas Block, Low Profile, .625 Barrel, Black
Original price was: $50.00.$44.95Current price is: $44.95.
This phosphate-finished .625 low profile gas block is honed to USGI TDP specs and set screw mounted for AR-15, M16, M4, and M4A1 rifles.
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Bravo Company Gas Block, Low Profile, .625 Barrel, Black
BCM machines this phosphate-finished steel gas block to USGI TDP specs, honing the barrel bore after finishing for a tight, mil-spec fit on AR-15, M16, M4, and M4A1 pattern rifles. The set screw mount secures the low profile block to any .625 barrel journal for a duty-grade, repeatable hold.
For a .750 pinch-screw alternative, take a look at the Yankee Hill Machine Low Profile Gas Block, or browse more fixed gas blocks.
Key Features
- Low profile set screw gas block for .625 barrel journals
- For use on AR-15, M16, M4, and M4A1 pattern rifles
- Barrel ID honed after finish per USGI TDP specs
- Phosphate finished machine steel
- Set screw mounting
- Color: Black
Specifications
| UPC | 855877004121 |
|---|---|
| Manufacturer | Bravo Company |
| Manufacturer Part # | BCM-LGB-625 |
| Type | Gas Block |
| Material | Phosphate Finished Machine Steel |
| Diameter | .625″ |
| Mount | Set Screw |
| Fit | AR-15, M16, M4, M4A1 |
| Color | Black |
| Subcategory | Long Gun Parts |
What’s Included
- 1x Bravo Company Gas Block, Low Profile, .625 Barrel, Black
| Weight | 0.5 lbs |
|---|---|
| Type | Gas Block |
| Model | Low Profile Gas Block |
| Diameter | .625" |
| Material | Phosphate Finished Machine Steel |
| Fit | AR-15, M16, M4, M4A1 |
| Color | Black |
| Brand |
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Frequently Asked Questions
What barrel journal diameter does this gas block fit?
This gas block fits barrels with a .625-inch diameter gas block seat, found on lightweight pencil-profile and thinner carbine-profile AR-15 barrels. Measure your barrel’s gas journal diameter before ordering.
How does this low-profile gas block attach to the barrel?
The BCM low-profile gas block uses set screws for barrel attachment. Properly dimpled barrels provide the best holding power. Apply blue thread-locking compound to the set screws and torque to spec during installation.
Is a low-profile gas block required for a free-float handguard?
Yes. Free-float handguards require a low-profile gas block to clear the handguard’s inner diameter. A standard-height gas block with a front sight tower will not fit under most free-float handguard designs.






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