The Franklin Armory OPS-16 is a 5.56 NATO piston-driven AR rifle with a 16-inch barrel and a 30-round steel magazine (Franklin Armory part no. 0010065BLK). Its Osprey piston system sits inside a slim 15-inch handguard with M-LOK slots on all seven sides. A custom tuned trigger, a single-sided selector and a B5 SOPMOD stock complete the setup. It is built for shooters who want a clean-running piston carbine for range use.

Key Specifications

• The chambering is 5.56 NATO, the standard AR-15 military cartridge.
• The operating system is the Osprey piston, a self-regulating design that reduces fouling in the receiver.
• The barrel is 16 inches in a lightweight (LTW) contour.
• The twist rate is 1:7 right-hand, a good match for heavier 5.56 bullets.
• The magazine is a 30-round steel magazine.
• The handguard is a 15-inch barrier-stop design with M-LOK slots and a Picatinny top rail.
• The trigger is a custom tuned trigger from Franklin Armory.
• The selector is a single-sided design.
• The stock is a B5 SOPMOD with a B5 P-Grip and a B5 Systems composite trigger guard.
• The muzzle device is a Triumvir flash suppressor, with an optics-ready top rail.

Frequently Asked Questions

What magazine comes with it? A 30-round steel magazine.

What is the twist rate? 1:7 right-hand.

Is it optic ready? Yes. Franklin Armory lists the sights as optics ready.

Buy the Franklin Armory OPS-16 Piston Rifle, 5.56 NATO, 16-Inch Barrel, 30-Round

The OPS-16 piston rifle is for shooters who want a cleaner-running AR with a factory-tuned trigger. Franklin Armory sets up the furniture, so it is ready to shoot. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more Franklin Armory models and our semi-auto rifles selection.