This is the same adjustable gas block that we use on our 16″ Rifle Complete Uppers.

Adjustment Screw lines up perfectly with the SLR 15″ M-LOK Rail for easy adjustment from the side.


  • NO ROLL PIN REQUIRED (Uses 3/32″ Hex Screw)
  • Material: Black Oxide Finished USA Steel
  • Weight: 1.6oz
  • Length: 0.95″
  • Height: 1.41″
  • Profile: .750
  • Includes: 2 x Set Screws, 1 x Gas Block Adjustment Screw, 1 x Threaded Gas Tube Pin

Be sure to use thread locker such as Rocksett or Loctite on the gas tube screw to ensure it won’t back out during use.

From the Manufacturer

KVP’s adjustable low profile gas blocks are designed with the builder in mind. KVP Gas Blocks feature a threaded gas tube retention pin that eliminates the installation awkwardness surrounding tiny gas tube roll pins! The KVP gas tube retention pin, gas adjustment screw, and the gas-block all install/adjust with the same 3/32″ Allen wrench. NO additional tools required!

Weight 5 oz
Dimensions 12 × 9 × 1 in