Daniel Defense’s MK12 Upper Receiver Group for AR15s is built around a cold hammer forged, stainless steel barrel. The chamber to this upper receiver is created during the cold hammer forging process, ensuring the most precise alignment of the chamber to the bore possible. This upper receiver group features a rifle length direct impingement gas system and employs an MK12 gas block that’s built to USSOCOM specifications. Other features include a full length flattop picatinny rail with plenty of space to mount a optic of choice, as well as clip-on night vision devices, as well as picatinny rails in the 9 o’clock, 6 o’clock, and 3 o’clock positions for the installation of tactical lights, lasers, fore-grips and other accessories. In addition, the MK12 Upper Receiver Group is outfitted with a Daniel Defense Improved Flash Suppressor, and an ambidextrous GRIP-N-RIP charging handle. Features of the MK12 Upper Receiver Group: Cold hammer forged, stainless steel barrelRifle length direct impingement gas systemQuad-rail system Daniel Defense Improved Flash SuppressorAmbidextrous GRIP-N-RIP charging handle Daniel Defense MK12 SPR Black 5.56 NATO 18″ Upper Receiver Group 23-142-10035
Bear Creek Arsenal BC15 5.56 NATO 16in Right Upper Receiver M4 Hammer Forged Carbine 1-7 1/2x28 Flash Hide Nitride ODG
Original price was: $336.10.$309.99Current price is: $309.99.
LWRC International LWRC ICDI Direct Impingement .300 Blackout 16.1" 1:7" 5/8x24 Bbl FDE Complete Upper Receiver ICDIU3CK16
Original price was: $1,347.00.$1,017.78Current price is: $1,017.78.
Daniel Defense MK12 SPR Black 5.56 NATO 18″ Upper Receiver Group 23-142-10035
Original price was: $1,755.00.$1,469.99Current price is: $1,469.99. 

