The Griffin Armament MK1 Patrol is a semi-automatic AR-platform rifle chambered in .223 Wylde, built with a 14.5-inch barrel pinned and welded to a legal, compliant overall length (Griffin Armament part no. MK1PATROLW). Griffin Armament designed the MK1 series as a full-featured carbine worthy of front-line use straight out of the box, and the Patrol pairs a tuned mid-length gas system with a suppressor-optimized buffer system for a soft, reliable cycle whether run suppressed or unsuppressed. A 416R stainless steel barrel provides exceptional accuracy and durability, and Griffin’s own bolt carrier group, forged upper and lower, and ambidextrous controls round out a rifle built for duty, home defense, or serious range use.

Key Specifications

• The 14.5-inch barrel is pinned and welded to a legally compliant overall length.
• The rifle is chambered in .223 Wylde, safely firing both .223 Remington and 5.56 NATO.
• It feeds from a 30+1 capacity magazine.
• The 416R stainless steel barrel is built for exceptional accuracy and long-term durability.
• A suppressor-optimized buffer system tunes reliability for suppressed or unsuppressed fire.
• Griffin’s enhanced bolt carrier group is engineered for smooth, reliable cycling.
• A forged upper and lower with Type 3 hardcoat anodizing resist wear and corrosion.
• Fully ambidextrous selectors and charging handle suit right- or left-handed shooters.
• Flip-up front and rear sights provide a fast backup sighting system.

Frequently Asked Questions

Is the 14.5-inch barrel a short-barreled rifle? No. The barrel is permanently pinned and welded with a muzzle device to bring the total length to a legally compliant rifle-length configuration.

Is this rifle suppressor ready? Yes, it uses a suppressor-optimized buffer and gas system tuned for reliable cycling suppressed or unsuppressed.

What caliber does it shoot? It’s chambered in .223 Wylde, which safely runs both .223 Remington and 5.56 NATO ammunition.

Buy the Griffin Armament MK1 Patrol Rifle

Get a front-line-ready carbine from Griffin Armament. Shop more AR rifles and order this MK1 Patrol from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.