Geissele VSASS MRGG MK1 6.5 Creedmoor 20"

The Geissele VSASS MRGG MK1 is the civilian version of the rifle Geissele Automatics delivers to SOCOM under the MRGG-S (Mid-Range Gas Gun, Sniper) contract awarded in 2023 at a $29M ceiling. SOCOM's requirement was a semi-auto 6.5 Creedmoor sniper rifle under 10.5 lbs with a 20-inch barrel, and Geissele's answer uses a cold hammer forged CRMOV chrome-lined barrel with a 1:7.5 twist optimized for heavy match projectiles.

The MRGG MK1 replaced or supplemented the aging SR-25 and M110 DMR platforms in SOCOM armories, bringing 6.5 Creedmoor's wind resistance and supersonic reach to teams that needed sniper-class precision without bolt-action handling penalties. The rifle ships with the Geissele SSA-E two-stage trigger, fully ambidextrous controls, and Geissele's 17.5-inch MRGG MK18 handguard. Weight lands at roughly 10.8 lbs, and overall length is about 41.5 inches collapsed.

For civilian buyers, this is the benchmark 6.5 CM precision gas gun. It carries the strongest contemporary SOCOM validation of any 6.5 CM AR-10 available to civilians, pairs best with premium glass and match ammunition, and sits at the top of the price ladder at roughly $6,300-6,550. Not the right rifle for general-purpose use, but the right rifle for shooters who want the exact SOCOM-selected precision gas gun.