EXTENDED CHOKE WITH DIAGONALLY-PORTED DESIGN FOR RECOIL REDUCTION. CONICAL/PARALLEL INTERNAL CONFIGURATION.
EASY TO INSTALL AND REMOVE WITH YOUR FINGERS. NO SPECIAL WRENCH OR TOOL REQUIRED. 
FITS BARRELS WITH REMINGTON STYLE THREADS.
REMINGTON HAS MULTIPLE THREAD SYSTEMS THAT ARE NOT INTERCHANGEABLE. 
THis CHOKE FITs 12 Gauge BARRELS WITH THE ORIGINAL REMINGTON STYLE THREADS. THESE CHOKES FIT THE VAST MAJORITY OF THE REMINGTON SHOTGUN MODELS SUCH AS THE 870, 887, 1100, 11-87.

OVERALL LENGTH: 3 9/16"

PORTED SECTION LENGTH: 1 1/2"
IN-BARREL LENGTH: 2 1/16"
STANDARD BORE SIZE: .730"
MATERIAL: 17 - 4 STAINLESS STEEL