In the new products section of the SHOT Show On Demand, the virtual version of the world’s largest arms exhibition, I came across this rather interesting AR-15 lower receiver made by the U.S. Arms Company (USAC). What makes the USAC M-4 CLS UTAW lower receiver unique is the built-in mechanism that allows applying tension and tightening the upper […]
The post [SHOT 2021] USAC AR-15 Lower Receiver with Built-in Receiver Tensioning System appeared first on The Firearm Blog.