Description
Dominator M870 AR Stock Adaptor Kit
The Dominator M870 AR Stock Adaptor Kit, as its name describes, is a kit for fitting an AR-style stock to an M870-pattern shotgun. Dominator makes the DM870, a shell-fed replica of the Remington M870 pump-action shotgun, and this adaptor is part of the accessory range for that platform.
AR-pattern stocks are popular because they are adjustable for length on a buffer tube and are available in a huge range of styles. Fitting one to a shotgun lets you match it to your rifle, set the length of pull to suit your body armour, and give the shotgun a more modern look. This kit suits DM870 owners who want to change the feel and appearance of their shotgun.
Why fit an AR stock?
A fixed traditional stock is fine for many players, but an adjustable AR-style stock can be shortened when you are wearing a plate carrier and lengthened for a more natural fit in lighter kit. Many players also prefer the familiar cheek weld of an M4-style stock, especially if they use one on their main rifle.
The parts included and the exact fitting method are shown in the product images and instructions, so check them before ordering. Depending on the stock you choose, you may also need a buffer tube if one is not part of the kit.
Fitting
Make sure the shotgun is unloaded, with no shells fitted, before you begin. Remove the existing stock as described in your shotgun’s manual, fit the adaptor and then the stock, and tighten everything firmly so there is no wobble. Check the action still works smoothly before using the shotgun in a game.
Key features
- Adaptor kit for fitting an AR-style stock to an M870-pattern shotgun
- Part of the Dominator accessory range
- Lets you use a wide choice of AR/M4-style stocks
- Adjustable length of pull with a suitable stock
- Gives the shotgun a modern look
Compatibility
Made for M870-style shotguns from Dominator. Other brands of M870 replica, such as APS CAM870 or Tokyo Marui-pattern shotguns, may differ in how the stock attaches, so check your shotgun before ordering. Make sure your chosen stock suits a standard AR-style buffer tube.
Care and maintenance
Check the stock and adaptor are tight before every game, as the recoil of pumping and handling can loosen screws over time. Wipe off dirt and moisture after use, and store the shotgun dry, with no gas in any shells.
Who is it for?
This kit is for Dominator DM870 owners who want to fit an adjustable AR-style stock to suit their kit, match their rifle or simply change the look of their shotgun.
Please note: The shotgun and stock are not included unless shown in the product images.
Please note: what's in the box can vary between batches. If a detail such as included magazines, battery, charger or connector type matters to you, contact us or call 01842 683567 and we'll confirm before you order.









