Convert your 20 Gauge shotgun to use 'BIG BOY' 12 gauge stocks!!! Mesa Tactical’s 20 gauge to 12 gauge adapter dramatically increases the number and type of butt stocks that can be used with 20 gauge Remington 870 shotguns. Attached at the receiver in place of the standard 20 gauge stock, this cast steel adapter enables the use of any 12 gauge Remington 870 stock. There are many more options for the 12 gauge than 20 gauge,

Remington 870 Shotgun Assembly Collaboration Kit + Mesa Tactical 'Lucy' Adaptor for 20 Gauge Weapons

Mesa Tactical Collaboration Defense Kit Telescoping Magpul Buttstock Adaptor, Tube & Castle Nut  12 Gauge Shotgun (No Stock Included) INCLUDES

Magpul & Mesa Tactical Collaboration Defense Kit Telescoping Magpul Buttstock, Magpul K2+ UPRIGHT Rubberized Pistol Grip for the 12 Gauge Shotgun

Tactical Collaboration BCM Bravo Company Kit Telescoping Buttstock w/ Adaptor, Tube & Castle Nut Mossberg 500 12 Gauge Shotgun (Stock Included) "The ultimate kit for a home defense 12 gauge builder" About the Stock: -The ultimate upgrade for the home defense shotgun builder. -Made in the USA. -Fits Milspec tube. -Aluminum tube included -USA Made -Snug fit -Excellent around tight corners and home home or office. -The ultimate tactical shotgun setup, ideal for your home-defense gun. -Perfect for Telescoping stock with adjustable length of pull, adjusts to thick clothing or body armor. -Milspec tube and Milspec castle nut included (no spring required) Technical Information: Mil-Spec Stock: Tube Diameter: 1.145" to 1.150" Weight: 0.50 LB Length of Pull: 10.70" to 13.95" Full setup weighs under 18 ounces. Stock is 8 ounces Six Positions About the AIM Tactical Adaptor: -Zytel Construction -Lifetime warranty SYSTEM CONCEPT AND PRODUCT OVERVIEW The most important capability of these adapters is to facilitate the use of collapsing or telescoping stocks, which provide a shorter length of pull (LoP) than the factory stock, which is especially important for law enforcement or “tactical” operators. In addition, these stock adapters accept a hydraulic buffer from Crosshair™ that reduces felt recoil. The AIM is by far the most effective of several shotgun stock systems on the market.

MESA TACTICAL + BCM GUNFIGHTER Collaboration Defense Kit Telescoping Magpul K-Pistol Grip + Adaptor + Tube & Castle Nut 12 Gauge Shotgun   About the Stock Tube: -The ultimate upgrade for the home defense shotgun builder. -Milspec Buffer Tube. -Aluminum buffer tube included -Excellent around tight corners and home home or office.   About the Grip:   -Includes Secret Compartment -Textured Grip -Includes Hardware   About the MESA LEO Adaptor:   "The ultimate kit for the 12 gauge builder"   -The ultimate tactical shotgun setup, ideal for your home-defense shotgun. -Includes Mesa Adaptor Kit (Constructed of Milled-aluminum -Accommodates Telescoping stock with adjustable length of pull, adjusts to thick clothing or body armor. -Milspec buffer tube and castle nut included (no spring required)   Technical Information:  Mil-Spec Stock Tube: Tube Diameter: 1.145" to 1.150" Weight: 0.50 LB Length of Pull: 10.70" to 13.95" About the Mesa Tactical Adaptor: SYSTEM CONCEPT AND PRODUCT OVERVIEW The most important capability of these adapters is to facilitate the use of collapsing or telescoping stocks, which provide a shorter length of pull (LoP) than the factory stock, which is especially important for law enforcement or “tactical” operators. In addition, these stock adapters accept a hydraulic buffer from Crosshair™ that reduces felt recoil. The Mesa Tactical Adaptor is by far the most robust and most effective of several  shotgun stock systems on the market.