Geissele: MRGG MK1 Rifle, 6.5 Creedmoor, 20"

Built from the ground up, the MRGG MK1 combines Geissele’s patented Phased Array® with Geissele Tri-Port™ Gas System, in-house Match Grade Cold Hammer-Forged Barrel technology, and fully ambidextrous controls to deliver a precision rifle greater than the sum of its parts. Engineered and hand-assembled by Geissele craftsmen for industry-leading accuracy, reliability, and a remarkably smooth shooting experience, it features a proprietary bolt group, and tuned buffer system to reduce felt recoil and enable faster follow-up shots. Whether in the field or on the competition line, the MRGG MK1 excels when every round matters.

The MRGG MK1 includes the attention to detail expected from world-class Geissele manufacturing.

For those who refuse to compromise, the MRGG MK1 sets the standard for flawless performance. Join the legacy of Geissele precision, reliability, and unmatched craftsmanship—and equip yourself with the rifle that defines excellence as the benchmark for success.

• Match Grade Cold Hammer-Forged Barrel – Flawlessly crafted in-house in North Wales, PA, delivering bolt-gun accuracy with gas-gun speed.
• Aluminum Billet Receiver Set – Steel-reinforced cam race and intuitive ambidextrous controls, including a dust-cover-actuated bolt catch and rearward release button for faster, instinctive reloads.
• MRGG SSA-E Two-Stage Trigger – Absolute reliability and precise control in the harshest environments, trusted by professionals in combat and competition.
• Nanoweapon®-Coated Reliability Enhanced BCG – Forged Carpenter 158+ bolt for unmatched durability under high round counts, exclusive to Geissele.
• MK18 Super Modular Rail – Integrated RRS ARCA-Lok bottom rail for modularity and adaptability to meet precision shooter needs.

Specifications:

• LENGTH COLLAPSED: 41.5"
• LENGTH EXTENDED: 42.9"
• WEIGHT: Approx. 10.8 lbs
• CALIBER: 6.5 Creedmoor (.308 Winchester for 7.62 Variant)
• COLOR: Black
• LOWER RECEIVER: MRGG Lower Receiver, Semi Auto, Ambidextrous
• UPPER RECEIVER: MRGG Upper Receiver
• BOLT CARRIER: MRGG Reliability Enhanced BCG
• HANDGUARD: MRGG MK18 17.5"
• BARREL: 20" CHF Chrome Lined, 1:7.5 Twist
• GAS LENGTH: Geissele Custom Rifle Length
• GAS BLOCK: Strato, .812 Journal
• GAS PORT: Geissele Phased Array® w/ Geissele Tri-Port™ System
• CHARGING HANDLE: MRGG, Enhanced, Ambi
• MUZZLE DEVICE: HUXWRX 7.62 Flash Hider, Nitride
• MUZZLE THREAD: 5/8 x 24
• TRIGGER: MRGG SSA-E
• BUFFER ASSEMBLY: Super 42® Braided Wire Spring & Buffer System, H2
• STOCK: Magpul PRS Lite
• GRIP: Geissele A22 Grip