Lewis Machine & Tool Company's LMT Gas Piston System is designed to upgrade the AR/M4/M16 series of carbines and rifles. It builds on LMT's CQB MRP platform and runs cooler and cleaner than standard ...
The Rock River Arms PDS Carbine and Pistol are the first of a new generation of firearms employing Rock River Arms’ Piston Driven System (PDS). Utilizing a purpose-designed bolt carrier, an adjustable ...
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