10.5" 6.8 SPC Yankee Hill Machine AR15 Upper Assembly 1x10 YHM Diamond Midlength Quad Rail
*Milspec forged aluminum upper receiver with forward assist and dust cover
assembly installed. Matte black hard coat anodized Mil 8625 Type 3 Class 2. Forged from 7075 T6 aluminum.
*YHM Midlength Diamond Series Free FLoat Quad Rail with YHM end cap.
*10.5” 6.8 SPC II Yankee Hill Machine Chrome Moly, Chrome Lined Barrel with 1x10 twist. 1/2X36 threads.
*.750 low profile gas block.
*Carbine Gas Tube.
*A1 flash hider with crush washer.
*This upper assembly will fit all standard AR 15 lower receivers.