The Rainier Arms Precision Match .308 BCG in Black Nitride is machined and finished to a higher standard to meet and exceed all Mil Spec. It is machined using the most precise equipment in the industry. The bolts are MPI tested & Marked to give you ultimate confidence in your weapon system. Our Bolt now features our improved Firing Pin, optimized for 6mm & 6.5mm calibers High Pressure Cartridges
Carrier Specifications:
- Full Auto Carrier
- SAE 8620
- Heat Treated
- Shot Peened
- Finish is QPQ treated
Bolt:9310 Steel
- Shot Peened
- Heat Treated
- QPQ Treated
Extractor:S7 Tool Steel
- Precision Machined
- Shot Peened
- Heat Treated
- QPQ Treated
Extractor Retaining Pin:
- Precision Machined 4140
- Heat Treated
- Precision ground to diameter
- Firing Pin:Colt Full Auto Spec
- Machined 4140
- Heat Treated