Use Mesa Tactical’s collapsible stock kits and adapters to install AR-15 adjustable buttstocks and pistol grips onto the venerable Remington 870 and Mossberg 500/590 shotgun platforms for the ultimate in tactical shotgun configuration performance.
Equipped with the Mesa Tactical stock adapter, the shotguns have an adjustable length-of-pull to perfectly fit to the shooter’s stature or equipment, such as body armor; feature handling characteristics similar to the ubiquitous AR-15; are more compact for transport and storage; and are more controllable due to the pistol grip configuration.
There are two lines of Mesa Tactical telescoping stock adapters:
1. High-tube® telescoping stock adapters, that require the use of railmounted optics;
2. LEO® telescoping stock adapters, which feature a stock elevation about an inch lower than the High-tube adapters and so don’t require sighting or aiming aids.
These adapters are available in two types of kits, adapter kits or complete stock kits.
The heart of the Mesa Tactical Telescoping Stock Conversion Kit is the stock adapter. The stock adapters are investment cast aircraft grade aluminum, CNC machined and powdercoated black with a tough, chemical resistant finish.
The concept is simple: the shotgun stock is replaced by an adapter that mimics the stock attachment point of an AR-15 lower receiver. This adapter accepts an AR-15 receiver buffer tube. The AR-15 collapsible stock and pistol grip can then be reliably attached to the shotgun.
Stock kits additionally include an M4 Carbine style telescoping buttstock assembly, a Hogue rubber overmolded pistol grip, a stamped steel stock wrench and a push-button sling swivel. A slip-on rubber butt pad for the M4 Carbine buttstock is available separately.
All LEO adapters accept optional push-button sling swivels.
The Telescoping stock adapter Shotgun Conversion Kits are available for the following 12 gauge and 20 gauge shotgun platforms:
• Remington 870 • Mossberg 500/590
LEO stock adapters can be fitted to 20 gauge Remington 870 shotguns; the Lucy™ Adapter allows 20 gauge Remington 870 shotguns to use 12 gauge 870 butt stocks. This elegantly simple coupler simply bolts to the back of a 20 gauge 870 receiver, allowing the 12 gauge stock to then rigidly bolt to the adapter. This greatly increases the options and availability of butt stocks for the 20 gauge shotgun. The 20 gauge Remington 870 is an excellent platform for personal defense, but it suffered from fewer tactical butt stock offerings than its 12 gauge counterpart. There are many more options for the 12 gauge than 20 gauge, including Mesa Tactical’s Urbino Stocks, telescoping stock adapter kits and even the Hydraulic Buffer system.
Generally, Mesa Tactical telescoping stock adapters will not fit on semiautomatic shotguns. Most semi-automatic shotguns feature a return spring housing that extends from the rear of the shotgun receiver that makes it impossible to fit an AR-15 stock system to the weapon.
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