mrgG Patented.

mid-range gas Gun

The Mid-Range Gas Gun (MRGG) is based on the SWORD Defense Systems renown Mk-17 rifle. The MRGG is the SWORD Defense Systems submission for a 6.5 Creedmoor semi-automatic rifle for a USSOCOM requirement. Taking the specifications of the requirement and lessons learned from the rigorous testing regimen, SWORD Defense Systems has produced an ultra-accurate and reliable semi-automatic platform that is capable of sub-minute accuracy with a variety of 6.5 ammunition.  After taking feedback from end-users, implementing enhancements, and a rigorous testing regimen, SWORD Defense Systems added the MRGG to the Defense product line.

The SWORD Defense Systems MRGG is offered in various barrel lengths and is chambered in both 6.5 Creedmoor and 7.62 NATO.



6.5 Creedmoor | 7.62 x 51 NATO


12.5″ Barrel 

WeighT:  8.10 lbs   

Length:   33.5” – 38.5”

20″  barrel:

Weight: 8.9 lbs

Length: 39.5” – 42.5”

12.5″ and 20″

Available in 14.5” & 16” variations

1:7.5 TWIST (1:8 Twist Available)  QPQ Nitride coating | OPTION FOR CERAKOTED BARREL 

Short Stroke Piston & Push Rod System

Safe, Semi-Automatic standard configuration

Select-Fire variant available upon request

Single-stage, Two-stage options

Fixed 12 O’clock rail, M-Lok compatible at 3/6/9 O’clock positions

Additional Options/Variations available upon request: 

Ambi Controls, Forward-Assist

M110 Lower Receiver Compatible

Supressor  Compatibility with CGS, Surefire, OSS, KAC 

Tri-Lock Rail System

Enhanced Bolt

Enhanced Bolt Carrier

Rear Charging Handle