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Geissele

Geissele MRGG-S MK1 Mod 0 6.5 Creedmoor 20"

Civilian version of the SOCOM MRGG-S contract rifle. 20-inch 6.5 Creedmoor precision gas gun with SSA-E trigger.

Key Highlights

  • Limited/reference rifle tied to the SOCOM MRGG-S program
  • 20-inch 6.5 Creedmoor precision gas gun

Specifications

Price
$6,300
Weight
10 lb 13 oz
Calibers
6.5 Creedmoor
Rail Type
mlok

Capability Profile

0-10 Scale Across 8 Axes

Compatibility Tags

family: modern-riflefamily: ar-patterntrigger: ar-fcgfamily: ar-10interface: picatinny-tophandguard: mlokbarrel: longmag-type: sr25

Overview

The Geissele MRGG-S MK1 Mod 0 is a limited-availability 6.5 Creedmoor precision gas gun tied to Geissele's SOCOM MRGG-S contract. Public reporting confirms the 2023 SOCOM award; civilian availability is intermittent, so contract and enthusiast-spec details should be confirmed against the exact rifle on offer.

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 a reference-tier 6.5 CM precision gas gun. It belongs at the top of the price ladder and should be paired with premium glass and match ammunition.

Key Features

  • 20-inch 6.5 Creedmoor precision-gas-gun reference configuration
  • MRGG MK18 17.5-inch M-LOK handguard with full-length top rail
  • Geissele/SOCOM MRGG-S contract program reference

Pros

  • +Tied to the SOCOM MRGG-S program reporting
  • +Reference-tier 6.5 CM precision gas gun for committed long-range users

Cons

  • Highest price in the civilian 6.5 CM AR-10 segment at roughly $6,300-6,550
  • Weight of ~10.8 lbs limits field mobility
  • Overbuilt for shooters not shooting past 600 yards
  • Production volume runs short of demand; expect backorder windows

Detailed Specifications

caliber
6.5 Creedmoor
Barrel Length
20 inches
Overall Length
Approx. 41.5 inches collapsed, 42.9 inches extended
weight
Approx. 10.8 lbs unloaded
Gas System
Direct impingement
handguard
MRGG MK18 17.5-inch M-LOK with full-length top rail
railSystem
Full-length Picatinny top rail
msrp
$6,300-$6,550

Compatible Components

+674 more

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