SOLGW NTC BCG is the direct result of nearly 2 years' worth of research and testing on advanced coatings; optimized for extended service life, high lubricity, and best-in-class corrosion resistance. While their standard phosphate-treated bolt carriers are fantastic and hold lubrication in place, the NTC coating they've selected is extremely slick even without lubrication. The low-friction coating does a phenomenal job of shedding carbon as well, making even suppressed use cleanup a breeze.

• Works for 5.56 NATO, .300 Blackout, 6MM MAX, and .350 Legend.
• HP/MPI Tested C158 Bolt.
• Phosphate Extractor.
• Chrome Plated Firing Pin.
• Chrome Lind Gas Key and Carrier Bore.
• NTC Coated Carrier, Bolt, Ejector, and Cam Pin.
• Includes OCKS (Optimized Carrier Key Screws) Upgrade.