Ar-15 .750 Jam Nut 1/2-28'''' - Ar-15 .750 Jam Nut 1/2-28'''' Stainless Steel Silver
Ar-15 .750 Jam Nut 1/2-28'''' - Ar-15 .750 Jam Nut 1/2-28'''' Stainless Steel Silver, High quality hex jam nuts for indexing muzzle devices. Available in black or stainless steel for A 1/2-28 threads. Mfg: J P Enterprises SPECS: .200 thick. Requires use of thin wrench to tighten against brakes and comps.