SV Precision Silver coating is a durability and reliability Plasma Vapor Deposition (PVD) bolt carrier group coating that reduces friction between sliding and rotating surfaces. SV Precision Sliver coating has the appearance of chrome but much harder and won’t flake or chip. It’s a dense, non-porous continuous coating unlike hard chrome which has high residual stress creating microcracking. This structure provides for very low residual stress with high-quality adhesion. The hardness, low coefficient of friction and residual stress of SV Precision Silver coating, combine to give high wear resistance, good corrosion resistance with great sliding action behavior even in low lubrication environments. SV Precision Silver coating has a smooth aesthetically pleasing appearance but it’s not just visually pleasing it’s all about enhanced high performance surface characteristic.


  • Coefficient of Friction: 0.5 – 0.8
  • Hardness: 82 Rc
  • Max Temperature: 600° F – 700° F
  • Thickness: 0.00035″ – 0.0005″
  • Color: Silver – Matte Gray


  • Lubricity
  • Wear Resistant
  • Smoother Recoil
  • Improved Consistency
  • Faster Cyclic Rate
  • Easier Cleaning

Additional information

Weight 1.1 lbs

SV Precision Steel Silver 308WIN/7.62x51mm/6.5 Creedmoor BCG


SV Precision coated bolt carrier group (full auto version) for AR10 (.308 WIN / 7.62x51mm / 6.5 Creedmoor) machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. SV Precision BCG includes the proper chrome lined and heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This insures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158® steel and shot peened for increased strength per Mil-Spec; includes tool steel extractor with spring; firing pin chromed finished with firing pin retaining pin and cam pin.

HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected).

Complete Mil-Spec AR10 Bolt Carrier with Bolt Assembly HPT/MPI Tested:

  • Compatible w/ any DPMS LR308 platforms
  • Mil-Spec BCG Machined from 8620 Aircraft Quality Steel and heat treated to 60-61 RC
  • Mil-Spec Chrome Lined Carrier Interior
  • Mil- Spec Chrome Lined Gas Key
  • Key Staked with Grade 8 Screws, per Mil-Spec
  • Mil-Spec Carpenter 158® Bolt w/ Spring and Ejector
  • Tool Steel Extractor w/ Spring
  • Mil-Spec Firing Pin w/ Chrome Finish
  • Mil-Spec Cam Pin
  • Full Auto Carrier (Backward compatible with all semi-auto rifles)
  • BCG Weight – 17.8 oz.