Bolt Carrier Assembly, .308 Winchester, Nickel Boron Plated

Bolt Carrier Assembly, .308 Winchester, Nickel Boron Plated
Item Number: TR-BCA-NB-308
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Detailed Description


These are among the best .308 Winchester DPMS-compatible AR rifle bolt carrier groups on the market and the same exact part we use as the basis of our renowned custom rifles!

These complete assemblies are manufactured by a domestic Mil-Spec contractor exclusively for Wilson Combat and finished in slick, tough NB plating (Nickel Boron).  You will be very pleased with the fit, function and finish. This assembly is a perfect mate to our match-grade barrels.

The bolt is precision machined from 9310 tool steel and includes an S7 tool steel extractor and hardened ejector.  The 8620 hardened steel carrier is smooth and has forward assist cuts.  This assembly includes a properly staked gas key for a lifetime of service in your next custom build.

  • NB (Nickel Boron) plated for easy clean up and corrosion protection
  • Machined ejector and S7 extractor will easily handle the pressure of hot, .308 based calibers
  • Properly staked gas key for a lifetime of reliable service
  • Drop in fit for any quality .308 case head based, DPMS-compatible  AR rifle with forward assist
  • Perfect for .308/7.62X51, .243, 6.5 Creedmoor, .260, .338 and other .308 Winchester based calibers