San Tan Tactical Low Profile .750″ Gas Block and Gas Tube Builder



Product Description

Gas Block

Unique, all-steel gas blocks expand the versatility of your rifle by providing a variety of accessory rail and hand guard mounting options. Especially helpful in customizing short-barreled tactical rifles. Designed Specifically for AR15 ‘s with a barrel .750″ O.D. at gas port.

Low Profile version is a low and narrow, one-piece block designed to fit inside most free-float hand guards; allows use of rifle length forearms on carbine length barrels for a clean, streamlined look and added gripping surface. Securely attaches to the barrel with included dual hex head set-screws.

Works in conjunction with all STT AR-15 Nitride Gas Tubes or standard Mil Spec gas tubes and hardware.


  • Machined from 17-4PH Stainless Steel
  • Weight: 0.66 oz
  • Dimensions: 1.35(ht) 1(ln)

Gas Tube

Precision machined from 304 Stainless Steel, San Tan Tactical AR15/AR10 Gas Tubes have an extremely durable black Nitride finish that increases corrosion resistance, wear resistance, fatigue strength and cosmetic appeal while ensuring consistent gas flow to help your rifle cycle properly. Made in the USA.

  • Available in Multiple Lengths
  • 304 Stainless
  • Nitride Coated
  • 100% Lifetime Warranty
  • Rifle Length – 15.160″
  • Intermediate Length – 13.650″
  • Mid Length – 11.75″
  • Carbine Length – 9.786″
  • Pistol length – 6.705″




San Tan Tactical

Technical Information



Firearm Compatibility

AR-15 / M4 / M16

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit