FITS: 11-87; 1100 - Common Parts
Remington factory components
Replacement gas system parts for your Remington 1100 and 11-87 shotguns
Includes steel piston, piston seal, and barrel seal
Fits 12 & 16 gauge, also older large frame 20 gauge models with "X" or "N" as a suffix to the serial number
Big Book Catalog, Issue:67, Page:198
SPECS: Can see Owner’s Manual for installation instructions.