Quick Tip: Remington 1100 gas piston system old vs. new

Published on March 23, 2016
Duration: 1:19

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.

Quick Summary

The new Remington 1100/1187 gas piston system features a two-piece interlocking steel ring design that snaps together. Installation requires placing the piston assembly's flat side against the action arm first, followed by the barrel seal O-ring. This updated system is backward compatible and functions identically to older designs.

Chapters

  1. 00:00Intro: Remington 1100/1187 Piston Changes
  2. 00:13New Piston Design & Assembly
  3. 00:34Installation on the Shotgun
  4. 00:51Compatibility & Support

Frequently Asked Questions

What is the main difference between the old and new Remington 1100/1187 gas piston systems?

The older Remington 1100/1187 shotguns used two separate steel rings for the gas piston system. The newer design integrates these into a single, two-piece unit that snaps together, simplifying assembly and maintenance.

How do you assemble the new Remington 1100/1187 gas piston unit?

To assemble the new piston, align the outside bevel of the back piece with the inside bevel of the front piece. Press them together firmly until they snap into a single, integrated unit.

What is the correct installation order for the new piston system on a Remington 1100/1187?

Install the piston assembly first, ensuring its large flat bottom bears against the action arm assembly. Then, install the barrel seal O-ring onto the magazine tube.

Is the new Remington 1100/1187 piston system compatible with older shotguns?

Yes, the new style piston system is fully backward compatible with older Remington 1100 and 1187 shotguns. It functions identically to the original design once properly installed.

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