Check the listing for details. GENUINE OpSol Mini Clip Mini Shell Adapter 2.0 compatible w 12 ga Mossberg NEW. Color: Black, Condition: New. Listed at 15.69 USD. MADE IN USA. Surplus old stock, so supply is limited. Mini-Clip™ 2.0 GENUINE OPSol product. This auction is for 1 Mini-Clip for use in the 12 ga Mossberg 500, 590, 590A1 or the 12 ga Maverick Model 88 shotguns, for using the Aguila 12 gauge Mini-Shells, 1 3/4" ammunition. This Mini Clip allows for perfect fast or slow pump action function in the Mossberg and Maverick Shotguns. FREE SHIPPING. OPSol Mini-Clip™ 2.0 This auction is for the MiniClip, the VERSION 2.0 or later. The following information is provided by the manufacturer of this product: 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. By using The OPSol Mini-Clip™ in conjunction with 1.75” shotgun shells, shooters stay in the game without all of the pain. Allows use of 12ga 1.75” Birdshot, Buckshot, and Slug shells . Fits: 12ga Mossberg 500, 590, 590A1, and Maverick 88 models.Below are some points about the OPSol 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). Not 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 If your shotgun tube currently holds 8 rounds of 2 3/4" ammunition, it can now hold 50% more shells . . . 12 rounds of Mini-Shells. The Mini-Clip 2.0 was better than the original. Allows use of 12ga 1.75” Birdshot, Buckshot, and Slug shells. Fits only: 12ga Mossberg 500, 590, 590A1, and Maverick 88 models ***** THIS LISTING IS FOR THE MINI-CLIP, NOT for Ammunition ***** If you have any questions or concerns, email us through Ebay . Thanks for looking. Absolutely no foreign sales. Please note that packaging has changed. These no longer come in an envelope, but come with an information card.