Brownells 75th Anniversary - A Shooting Heritage
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Designed by Bill Wilson and the Wilson Combat design team to be the base for the ultimate precision tactical AR-15 rifle, the BILLet-AR upper receiver set is 100% machined in their Berryville, AR facility.

The Wilson Combat BILLet-AR receiver was engineered from the ground up to address structural design weaknesses in standard USGI receivers and enhance overall tolerances.
The BILLet-AR upper receiver has a precise bolt raceway for smoother chambering, more rigid receiver walls to reduce firing flex.  

Wilson Combat’s extensive experience as a premier custom builder of AR-15 rifles will ensure your satisfaction with this next generation precision tactical shooting platform.

  • CNC machined from 7075-T6 aerospace aluminum billet stock.
  • Picatinny top rail.
  • Shell deflector.
  • M4-style extended feed ramps for excellent reliability with a wide variety of calibers.
  • Undersize bolt raceway for smoother chambering, improved feeding and enhanced recoil dynamics.
  • Smooth side profile without forward assist for maximum accuracy potential.
  • Good match with standard GI lowers or Wilson BILLet-AR lower receivers and any standard AR barrel.
  • Hand prepped for a flawless surface finish.
  • Mil-Spec hard anodized black finish.
  • Enhanced receiver will not accept some aftermarket bolt releases.

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Cartridge: 5.56 mm NATO

Finish: Black

Style: Stripped