OPSOL Mossberg 500/590 12 Gauge MiniClip, Black Md:

The OPSol Mini-Clip was designed to give "well seasoned" and "recoil sensitive" shooters the capability of shooting the trusty Mossberg 12ga platform without the usual recoil response.

OPSol Texas
Mini-Clip
Use with Aguila Birdshot, Buckshot and Slug offerings in Mossberg 12ga 500, 590 and Maverick 88 models
Easily installs and uninstalls in seconds to allow use of 1.75", 2.75" or 3" shells as desired by user
Practice with less expensive Aguila birdshot as the recoil response vs. Aguila buckshot is slight
Low recoil of buckshot allows for safe, easy and comfortable aiming and discharge with pistol grip configurations (with proper grip/face clearance, of course)
FALSEt confined to hip and laser shooting
Mini-Clip stays in well, but may want to tape in with electrical or Gorilla tape for close contact or heavy foliage environment applications

Fits:
Mossberg 12ga 500, 590, 590A1 and Maverick 88 models