Watertown WI, Sept. 14th, 2023 –  

Using intellectual property developed by Griffin circa 2013, the Griffin MK2 AR-15 Series improves on the features of the MK1 by upgrading the foundation of the rifle; its lower receiver. The Griffin MK2 fully ambidextrous lower receiver is manufactured using state-of-the-art aerospace manufacturing techniques to achieve sub-mil-spec tolerances and unparalleled quality.

The MK2 AR-15 lower receiver is CNC-machined from a custom 7075-T6 aluminum forging with exacting tolerances at Griffin’s Watertown, WI manufacturing facility. In-machine probing, tool setting, machining, and premium deburring & de-flashing ensure a premium fit and finish and unparalleled quality. Finished in Type 3 black hardcoat anodizing, with a 60-degree flared magazine well, and built in all-weather trigger guard, the MK2 series lower is the premium foundation of an excellent fighting rifle.

The tuned gas system and suppressor optimized buffer system ensure a soft, yet reliable gas system during suppressed or unsuppressed use. The nitrided, 416R SS barrel provides improved accuracy and exceptional durability. Internal testing of this barrel to 47,000 suppressed rounds yielded zero baffle strikes, and intact rifling until the barrel was retired due to extension lug wear. Other case studies, such as multiple M24 SWS barrels holding 0.35 MOA to 20,000+ rounds in army testing provide further evidence that 416R SS is an extremely durable barrel material.  

Griffin MK2 rifles are available in two rail styles, both featuring M-LOK compatible mounting interfaces throughout.  The Low Profile rail is a rigid yet slender option for ideal ergonomics; featuring internal supporting ribs, this rail has extremely minimal flex, we measured at 30% of alternative market systems, and therefore is very accurate with laser systems and clip-on rail mounted night vision devices. The Griffin SR rail is a suppressor optimized hex rail allowing suppressors of 1.5” of diameter to free float under the handguard providing better hand holds with short, suppressed barrels.

The Griffin MK2 lower receiver’s controls are mirrored on both sides affording full-ambidextrous capability and vastly improved functionality for left & right-handed shooters. Ambidextrous controls include:

• Ejection Port Side Bolt Catch & Release

• Non-Ejection Port Side Magazine Release

• Safety Selector Kit

• SN-ACH™ Charging Handle


“It is satisfying to finally release these, ten years after my original design of the Ambi Lower suite.  The Mk2 is everything the MK1 should have been – forged, ambidextrous, better than mil-spec dimensions, with the classic lines we all know and appreciate.  It was great to be able to fully control quality this time around and give this project the attention to detail required to make these parts exceptional as they should be. It’s a great feeling to put the part in your hand and realize one of the nicest lowers you’ve ever handled is the product of your company.”

– Austin, Product Development Manager, Griffin Armament 

MK2 rifles are machined in Griffin’s Watertown Wisconsin facility by freedom loving Americans.

Key points:

• Griffin 416R SS HEDP™ Barrels

• Griffin Enhanced BCG

• Griffin Forged Upper & Lower Type 3 Black Hardcoat Anodized

• Griffin Full Ambidextrous Lower w/ 60-degree Flared Magazine Well and Integrated Trigger Guard

• Griffin A3 Grip and Enhanced Trigger Guard

• Griffin Contour Connect QD End plate

• Griffin Maritime Receiver Extension™

• Griffin AR-SOB (Suppressor Optimized Buffer)

• Griffin ECS™ Extreme Condition Stock

• Griffin RailShield™ 4 Piece Panel Kit

• Griffin Low Pro Rail System

• Griffin Primo Gas Block (pinned)

• Griffin Silencer Mount Muzzle Device

• Griffin Dimpled Takedown Pins

• Warrantied for life with Griffin’s Perpetual Lifetime Warranty

Models Available:

MK2 Recce 16” Carbine .223 Wylde MSRP: $1,720.00

MK2 Patrol 14.5” Carbine .223 Wylde MSRP: $1,720.00

MK2 CQB 11.5” SBR .223 Wylde MSRP: $1,720.00

MK2 PSD 9.5” SBR .223W or .300BLK MSRP: $1,720.00

MK2 CQB 11.5” Suppressed SBR .223 Wylde MSRP: $1,720.00

MK2 PSD 9.5” Suppressed SBR .300BLK MSRP: $1,720.00

To find out more on Griffin Armament’s entire product line, please visit their website at www.GriffinArmament.com

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