$44.95
101 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
Bravo Company doesn't cut corners, and this Low-Profile Gas Block is a great example of why builders keep coming back to their parts. Made for AR-15, M16, M4, and M4A1 barrels with a .750 inch gas seat, it's machined from steel and finished in black phosphate so it holds up to the constant heat and pressure that runs through a gas system. It sits low enough to slide right under a free-float rail while still lining up with standard gas tubes, whether you're running pistol, carbine, mid-length, or rifle-length.
The attention to detail here is where BCM earns its reputation. Each block is manufactured to tight Mil-Spec tolerances, and the internal diameter is honed after finishing per the USGI technical data package. That extra step matters because it means the bore is sized correctly after the phosphate goes on, giving you a snug, repeatable fit on the barrel instead of something sloppy or oversized.
This one uses set-screw mounting and ships with steel 10-32 x 3/16 knurled cup point set screws. Plenty of folks run these with a dab of thread locker and call it a day, while others prefer to dimple the barrel for extra insurance. Either way, expect a tight fit going on. Builders regularly report the block seating firmly enough that a nylon punch and a light tap help it home, which is exactly what you want from a part that's supposed to stay locked in place.
It's a clean, no-drama choice for a fresh build, a free-float handguard upgrade, or swapping out an old front sight base. If you're already running a BCM upper or handguard, this gas block drops in like it was meant to be there, because it was.
It's built for barrels with a .750 inch gas block journal, which is the most common size on standard AR-15, M16, M4, and M4A1 barrels. The internal diameter is honed after finishing for a precise, snug fit. Just confirm your barrel's gas seat measures .750 before ordering.
Yes, it ships with steel 10-32 x 3/16 knurled cup point set screws for mounting. Many builders add thread locker for extra hold. It does not include a gas tube or gas tube roll pin, so grab those separately if your build needs them.
That's exactly what a low-profile block is for. It sits low enough to tuck under most free-float rails while still clearing standard gas tubes across pistol, carbine, mid-length, and rifle-length setups. It pairs especially well with BCM rails and uppers.
Set screws with a quality thread locker work reliably for a lot of builders and hold up fine on hard-use guns. Dimpling the barrel is an extra step some folks take for added security and to keep the block from shifting. Either approach works, so it comes down to how much peace of mind you want.
| UPC | 855877004138 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | LGB750 |
| Color | Black |
| Length | 6.9500 |
| Model | |
| Product Type | Gas Block |
| Style | Low-Profile |
You must be logged in to post a review.
Reviews
There are no reviews yet.