Our AR-15 Bolt Assemblies are American Made and machined by manufacturers of mil-spec AR-15 components.
Manufactured to precise tolerances, these high-quality replacement parts help keep your AR-15 functioning properly. This bolt assembly from AR15 Elite will work with any AR-15.
- Precision machined from 9310
- Heat treated per mil-spec,
- Shot peened per ASTM B851/SAE AMS2430S,
- Vibratory tumbled
- Individual high pressure/proof (HP)
- Individual magnetic particle inspection ASTM E1444/E1444M (MPI)
- Markings deep laser engraved "MPI"=Magnetic Particle Inspection.
Extractor:
- Precision machined from 4340 tool steel alloy per SAE AMS6415T/AMS6484D (vs 4140),
- Heat treated
- Shot peen per ASTM B851/SAE AMS2430S.
Extractor Retaining Pin:
- Precision machined and ground S7 Tool Steel
- Heat treated per ASTM A681-08
- Shot peened per mil-spec print
Extractor Spring:
- Tactical Springs/Sprinco 5 coil, ASTM Grade A401 Chrome Silicon wire stock
- Heat treated
- Stress relieved, Molybdenum-Disulfide infused
- Cryogenic processed (all post winding)
- Mil-spec black insert/synthetic elastomer extractor buffer (nitrile-butadiene, shore hardness 80+/-5 durometer per MIL-PRF-6855)
Ejector:
- S7 Tool Steel
- Heat treated per ASTM A681-08
- Shot peened per Mil-Spec
Ejector Spring:
- Heat treated
- Mil Spec
Gas Rings:
- Standard stainless steel per Mil-Spec X3
