Precision Reflex DPMS .308 Gen 3 Replacement Barrel Nut Black Black. These Rifle Barrels Nuts by Precision Reflex are constructed of high-strength steel with a parkerized finish that will provide superior strength for years of use. This Precision Reflex DPMS 308 Replacement Barrel Nut is compatible with DPMS-pattern 308 rifles and this product includes a roll pin. If you need a reliable and dependable barrel nut for your DPMS-patched rifle then look no further than Precision Reflex for your replacement needs. Specifications for Precision Reflex DPMS Replacement Barrel Nut: Manufacturer: Precision Reflex Color: Black Fabric/Material: Steel Quantity: 1 Finish: Parkerized Model Generation: 3 Package Contents: Precision Reflex DPMS Replacement Barrel Nut Precision Reflex 03-072-RBND: DPMS .308 Gen 3 Replacement Barrel Nut Black Black