Upper Receiver Assembly - Grunt Enhanced 300 Blackout AR-15 with 15" Grunt Free Float (OD Green)


  • Upper Receiver: Fully CNC machined from 7075-T6 aluminum for extreme precision and enhanced durability. Flat top picatinny design for versatility in mounting optics and other enhanced components. CNC engraved numbered rail system. M4 feed ramps for added reliability.
  • Free Float: 15" Ultra lightweight slim profile designed for duty use. CNC machined 6061-T6 aluminum. Unique design offers ultra capture around the barrel nut eliminating the requirement for anti-rotation tabs. Eliminates harmonics from attached accessories, greatly improving weapon accuracy. Full length picatinny CNC engraved numbered rail at the 12 o'clock position. M-LOK slots at the 3 and 9 o'clock positions and full length M-LOK at the 6 o'clock position for mounting only the picatinny rail needed or accessories.
  • Barrel: Match grade 4150V (chrome moly vanadium steel) 16" barrel with black nitride finish. 1:8 Twist.
  • Gas Block: Micro style steel for light weight and increased durability.
  • Finish: CerakoteH series.
  • Gas System: Direct impingement with pistol length gas system to enhance feeding reliability.
  • Weight: 3.5 lbs
  • Made in the USA!

Related Items