AR-15 Gas Blocks and Tubes

Browse through our wide list of high-quality AR 15 Low Profile Gas Blocks and Tubes

The AR 15 gas block is a part of gas system that replaces the standard front-sight base.
On the AR, there is a small “gas port” (small hole) in the barrel that vents gas with every shot. This gas travels through the gas block and gas tube into the receiver, where it powers the bolt carrier group and auto-cycles the next round. READ MORE

sort-panelSort
List
Grid

Other AR-15 Upper Receiver Components:

AR 15 Charging Handles
AR 15 Gas Blocks & Tubes
AR 15 Handguards & Quad Rails
AR-15 Barrels
AR-15 Bolt Carrier Groups
AR-15 Front Grips
AR-15 Upper Receivers and Parts
Muzzle Devices
AR-15 Handguard Accessories