TacStar AdTac Innovation

TacStar AdTac RM4-SE Rfile Stock, shown in DCS ATACs camouflage



The ADTAC™ RM4 Stock is the most advanced and versatile stock available for the extremely popular Ruger 10/22 rifle. This innovative stock is loaded with more features than any other on the market.

The removable barrel insert provides a custom fit for both standard tapered barrels and .920" bull barrels.

Patented Stowaway™ accessory rail is concealed in the forend. When reversed, the rail is available for a bi-pod or other accessories.

Get custom length-of-pull for proper fit and improved performance with the adjustable M4 type butt-stock, equipped with ambidextrous storage compartments for two spare Ruger rotary magazines. (Magazines not included.)

The pistol grip is designed to fit the spring-loaded TacTRED™ monopod for increased stability (sold separately). TacTRED provides a quick, stable, single point rest on any surface and ensures maximum tripod-like stability when used with a front rail-mounted bipod or front rest.

Retail packaging


$169.99 / $129.95

Camo / Black



  • Accommodates both standard and bull barrels
  • Stowaway™ accessory rail hidden in forestock
  • Adjustable rear stock with magazine storage
  • Durable reinforced polymer construction
  • Available in Stōn Premiere Cobalt, Moss, Lava, and Coyote
  • Available in Legends, Muddy Girl, Kryptek Highlander camouflage, and black
  • TacTRED™ monopod compatible
  • Made in the U.S.A.


Caliber Average weight Length Barrel type L.O.P. (Length of Pull)
10/22 2.65 lbs. 30.5 - 34.5" Standard / .920" Bull 10.375 - 14.375"

*Note: ADTAC products are available for sale online at LymanProducts.com or at sporting goods and outdoor retailers nationwide.

TacTRED Monopod Accessory, light accessory, soft case and rifle action not included.

Barrel Insert, U.S. Patent 8,056,278

Related Products

Rear stock holds two spare Ruger rotary magazines
Stowaway accessory rail hidden in forestock
Fits either standard tapered barrels or .920 bull barrels