The Precision Armament M4 Muzzle Thread Adapter lets you run a 5/8×24 muzzle device on a standard 1/2×28 AR-15 barrel.

It threads onto the 1/2×28 barrel and presents a 5/8×24 external thread, moving the device .100″ forward. It is machined from heat-treated 400-series stainless steel with threads single-point cut to a tight-tolerance fit and finished in pvd matte black.

Specifications

• Brand: Precision Armament
• Barrel Thread: 1/2×28
• Device Thread: 5/8×24
• Length: 0.625″
• Outside Diameter: 0.825″
• Wrench Flats: 0.750″
• Weight: 0.24 oz
• Material: Heat-treated 400-series stainless steel
• Finish: PVD Matte Black
• UPC: 810112080032