United Defense AR-15/M16 5.56/.223/.300/.350 Phosphate 158 Carpenter Steel Complete Bolt Head
MPI & HPT Tested These Bolt Heads Are Finished In Phosphate And Made From 158 Carpenter SteelMake These A Fine Enhancement Or Backup Bolt For Your AR-15 Rifle Complete With Extractor & Ejector Installed With Gas Rings These Are Ready To Be Installed
FEATURES:Made from one of the finest steels available used for bolt productionWill only show slight wear even after 20,000 rounds of serviceRated for almost infinite round number of 100,000+ roundsMeets or Exceeds Mil-Spec
SPECIFICATIONS: Brand: Prime Weaponry Caliber: 5.56 / .223 / 300 Blk / .350 Legend Bolt Head Finish: Phosphate Bolt Head Material: 158 Carpenter Steel Magnetic Particle Inspect (MPI): Yes Platform: AR-15 Style: Standard Color: Black Full Auto Compatible: No