Product Description
458 Socom Bolt Carrier Group AR-15 | Tromix Bolt | Nitride Milspec BCG
**The bolt assembly on this BCG is a genuine Tromix brand bolt assembly designed and perfected specifically for 458 Socom. It has technical aspects of design to eliminate common feeding and cycling issues common to 458 Socom. If you've done your research, you know it's worth it.**
Our AR-15 Bolt Carrier Groups are American Made and machined by manufacturers of mil-spec AR-15 components.
Product Details
- Platform: AR-15
- Calibers: For use with 458 Socom, 450 Bushmaster, 375 Socom
- Hand Orientation: Right
- Material: 9310 Alloy Steel
- Color: Black
Features
- M16 auto profile carrier machined from aircraft and bearing quality 8620 steel, properly heat-treated, precision ground and completed with nitride finish for durability and corrosion-resistance
- Bolt machined from a 1-piece of aircraft/bearing quality 9310 steel, properly heat-treated, precision ground, shot-peened, MPI tested and completed with mag phos finish.
- Firing pin machined to Mil-Spec print from 8740 steel, precision ground and chrome-plated for durability and corrosion-resistance
- 1-piece billet, fully machined enhanced extractor with a phosphate coating for increased reliability and corrosion-resistance
- Nitride cam pin
- S7 tool steel ejector and extractor retaining pin for enhanced strength and durability
- 4130 steel gas key with nitride finish, precision staked using a hydraulic staking machine for durability and secure fastening
- Carrier key screws with T25 drive, grade 8 and proper heat treatment for durability and secure fastening
