Precision Reflex MK12 MOD 0 SPR Gen II Complete Upper, 5.56mm, 18-inch, FDE

The Precision Reflex MK12 MOD 0 SPR Gen II Complete Upper (brand part no. 07-556G2D-18) is a complete AR-15 upper built to the MK12 MOD 0 Special Purpose Rifle Gen II configuration, chambered in 5.56mm with an 18-inch barrel and a 1-in-8 twist rate, finished in FDE and ready to attach to a compatible lower.

Key Specifications

• Sold as a complete upper, ready to attach to a compatible AR-15 lower.
• Barrel measures 18 inches, clearing the federal minimum rifle barrel length with room to spare.
• Chambered in 5.56mm.
• Uses a 1-in-8 twist rate.
• Built to the MK12 MOD 0 SPR (Special Purpose Rifle) Gen II configuration.
• Finished in FDE.
• Includes the bolt carrier group and charging handle as part of the complete assembly.
• Designed as a precision, target-oriented AR-15 upper configuration.
• Fits standard mil-spec AR-15 lower receivers.
• Manufactured by Precision Reflex.

Frequently Asked Questions

Is this barrel legal without any special paperwork? Yes, at 18 inches it clears the federal minimum rifle barrel length, so no NFA registration is required.

What does MK12 MOD 0 SPR mean? It’s the Special Purpose Rifle Gen II configuration this complete upper is built to, a precision-oriented AR-15 upper platform.

Does this include the bolt carrier group? Yes, it’s sold as a complete upper, including the bolt carrier group and charging handle.

Buy the PRI MK12 MOD 0 SPR Gen II Upper, FDE

Order the Precision Reflex MK12 MOD 0 SPR Gen II Complete Upper through our Precision Reflex lineup at Schaefer Defense and we will ship it fast, fully insured, from our Lubbock, TX gun shop, along with more AR15 uppers.