Quick Tip: Remington 1100 gas piston system old vs. new
This video details the updated gas piston and seal design for Remington 1100 and 1187 shotguns. It contrasts the older two-piece steel ring system with the new integrated two-piece design that snaps together. The correct installation order, with the piston assembly's flat side bearing against the action arm first, followed by the barrel seal O-ring, is demonstrated. The new system is backward compatible and functions identically to the old one.









