Tag Archives: adams arms piston

Adams Arms Retrofit Gas Piston System (RGPS) for Tactical AR-15 Carbines

By David Crane defrev at gmail dot com September 19, 2008 Adams Arms, Inc. is offering an "AR15 Fix" a.k.a. "Retrofit Gas Piston System (RGPS)" (Patent Pending) that will all you to easily convert your direct-gas-impingement (DGI) tactical AR carbine (tactical AR-15 carbine) into a short-stroke gas piston/op-rod system in about ten (10) minutes. The RGPS, described by the company …

Read More »