- Enlarged barring surfaces
- JPBC-3 Low Mass bolt carrier (Carrier only)
- Durable qpq finish
- Does NOT include forward assist serrations
6.8 SPC II Bolt
- DLC finish
- SAE 9310 steel (extends the lifetime of bolt)
- Superior lug geometry for exceptional lock-up
- Enhanced ejector
- Enhanced extractor
- 8.8 oz.
Compatible with any standard Mil-Spec upper! The bore of the JP stainless carriers has a roller burnished finish for friction-less operation with no chance of peeling chrome as in standard mil-spec carriers. The exterior bearing surfaces are hand polished. When properly lubricated, both things make your rifle feel like it is cycling on ball bearings. The JPBC-3 carrier provides a 100% increase in bearing surface for smoother operation and improved alignment and lower wear in the upper receiver. AR-15 semi auto configuration in the rear with the mil-spec longer cocking pad in the front for best reliability. This is one of the best designed and highest quality general purpose carriers on the market. The JP EnhancedBolt is made from SAE 9310 high-grade steel. This material makes for an extremely hard surface with a tough, ductile core resistant to structural failure and a life expectancy far exceeding Mil-spec 8620-type bolts. SAE 9310 is the same type of steel used in the transmission gears of Formula One race cars, the high-load application of a bolt assembly is ideal for this state-of-the-art material; the results of actual full-auto endurance torture tests prove it.