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First-look video of Carbine and Pistol PDS from 2010 Shot Show.

From: Rock River Arms

PDS-Carbine

Rock River Arms started engineering a piston system over two years ago and are now introducing that system.  The new PDS (Piston Driven System) Carbine is reliable, every time.

The Rock River Arms PDS Carbine and Pistol are the first of a new generation of firearms employing Rock River Arms’ patent-pending Piston Driven System (PDS). Utilizing a purpose-designed bolt carrier, an adjustable gas piston and an over-the-barrel spring and guide rod arrangement, the Rock River Arms Piston Driven System is able to completely do away with the traditional recoil system, making for an extremely accurate, fast-handling and versatile weapon platform. Read the rest of this entry »