The LBE Unlimited Low Profile Gas Block (brand part no. ARLPGB) is a .750-inch diameter gas block built for AR-15 rifles. Machined from 4142 steel and finished in black nitride, it’s sized to sit low enough to tuck under most free-float handguards while still reliably metering gas to the bolt carrier group. The black nitride finish adds corrosion resistance and a durable, low-glare surface that holds up to repeated heat cycling at the gas port. It’s a straightforward, direct-fit replacement for anyone building an AR-15 upper or swapping out a worn factory gas block.

Key Specifications

• It’s sized for a .750-inch diameter barrel journal.
• It’s machined from 4142 steel for durability.
• It carries a black nitride finish for corrosion resistance.
• Its low-profile design is built to clear most free-float handguards.
• It’s built specifically for the AR-15 platform.

Frequently Asked Questions

What barrel diameter does this gas block fit? It’s sized for a .750-inch diameter barrel journal.

Will it fit under a free-float handguard? Yes, its low-profile design is built to clear most free-float AR-15 handguards.

Buy the LBE Unlimited Low Profile Gas Block

Get a durable, low-profile gas block for your AR-15 build with the LBE Unlimited .750-Inch Gas Block. Shop more LBE Unlimited AR gas system parts and get fast shipping from our Lubbock, Texas gun shop.