For Mk12 Mod 1 and SAM-R precision clone builders, ring height is not a matter of taste — it's a matter of getting the rifle right. The A.R.M.S. #22 High 30mm Rings are the high-height answer, purpose-built to clear a Nightforce NXS scope over the Mk12 Mod 1 upper while maintaining co-witness with KAC BUIS. At 1.450" center-of-optic to base-top, these rings drop the optic into exactly the height range these builds demand. Note: Mk12 Mod 0 builds sit higher because of the SWAN rail — those need Medium Rings instead.
The #22 series uses all-steel rings on an extruded aluminum platform, secured with A.R.M.S.'s proprietary quick-detach dovetail and the battle-proven Throw Lever mechanism. 2018-and-later production adds an integrated 90-degree stop so the levers seat consistently. Rail interface is Mil-Spec 1913. A.R.M.S. (Atlantic Research Marketing Systems) has been building QD mounting systems in Massachusetts since 1983, and the #22 rings have been fielded by special operations units worldwide. NSN 5365-01-562-0979. Package includes one pair of high rings with mounting hardware. Order yours from Charlie's today and finish your Mk12 Mod 1 the right way.
