2 Sets of replacement barrel seals for all Remington 1100 & 11-87 20 Gauge STD/LT/LW/SP models. Contains the larger F15899/19264 o-rings for ST/STD models as well as the smaller F14437 o-rings for LT/LW models. This kit covers you for any 20ga model 1100/1187. Highest grade synthetic rubber o-rings with graphite coating replace old, worn, or cracked orings to provide a proper seal and restore gas system reliability. This is the same material used by Remington when your 1100/11-87 left the factory. Used to resolve blow back issues with 20 gauge gas ports for Remington 1100 & 11-87 models. Material has high temperature, compression, and operational tolerances. Up to 316 C (600 F) and down to -54 C (-65 F) Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA! This is the barrel seal set for all Remington Model 1100 and 11-87 20 gauge models (STD/LT/LW/SP). Included are four total o-rings. Two larger and two smaller o-rings. Some 20 gauge 1100's (LT/LW/SP) use the smaller F14437 o-ring, while the ST/STD models use the larger F15899/19264 o-ring (the same size as the 12 gauge barrel seal). Either way, this kit has you covered with two of each size used in 20 gauge Remington 1100/11-87 models.

Synthetic rubber and fluoropolymer elastomer. This is the superior material for the gas system barrel seal, the same material used by Remington when your 1100/11-87 was new. Don't trust inferior materials with lower temperature specs and less chemical resistance. These synthetic o-rings will hold up against solvents used to clean your 1100/11-87, as well as perform flawlessly up to 600F.

What to expect:
This item includes two (2) larger graphite coated o-rings and two (2) smaller graphite coated o-rings (4 o-rings total) in a resealable zip-top poly bag with "Captain O-Ring" branded packaging.

Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!