Government Contract Overrun 14.5” Billet Upper Kit

Limited Stock!

This web exclusive Troy match grade upper receiver kit is ideal for the novice or advanced builder wanting to finish that build and hit the range. Simply add your favorite BCG, charging handle and muzzle device and you’re ready to go. This web exclusive kit contains Troy’s 13” M-LOK free floating quad-lock rail along with a 14.5” barrel.

Please note: This kit does not come with a muzzle device, charging handle or bolt carrier group. But please feel free to add Troy’s Pneuma charging handle along with a Troy muzzle device of your choice.

All Troy uppers are test fired and subject to Troy’s rigorous quality standards.

Overrun: 14.5” Billet Upper Kit

SKU#: SUPG-CL0-14BT-00



  • Machined Billet Upper

  • 14.5” Barrel

  • TROY 13” M-LOK Rail

  • Dust Cover

  • .750 Gas Block

  • Standard Barrel Nut

  • Factory Assembled

  • American Sourced, American Made

  • Limited Lifetime Warranty


  • Caliber 5.56

  • Operating System Gas Operated

  • Barrel Length 14.5” (36.83cm)

  • Rifling 1:8 Twist .223 Wylde Chamber

  • Finish MIL-SPEC Hard Coat Anodized