The Iraqi Popular Mobilization Units PMU was about to introduce a new 12.7x108mm anti-material rifle before the Iraqi designer Ghazwan Al-Azarah prohibited them from proceeding (since they didn’t get his permission to produce his patent; which is interesting all on its own). He made two variants for his rifles to be chambered with 12.7x108mm and 12.7x99mm (.50 BMG).
Ghazwan is the man behind the PMU local made anti-material rifles which we have seen before (gladly I met him online recently and soon I will publish an article about his designs on TFB). Thankfully he answered my questions about this rifle; he himself was a member of the PMU.
The rifle is built basically on a DShK heavy machine gun barrel –as usual- which passed through honing on a lathe to reduce the external diameter and still attaching the DShK’s flash suppressor, but unlike the majority of improvised AMRs in Iraq and Syria, this rifle has some distinctive features.
The receiver is tubular shaped and the barrel is screwed to the receiver’s face with a smaller hole above the barrel’s assembling slot. This is for the gas piston which automatically ejects the spent case leaving a room for loading a fresh one.
The rifle ejects automatically but there isn’t a feeding magazine. There is a magazine well but without a magazine catch–which categorizes the rifle in a class sort of “gas operated-straight pull-bolt action”.
The bolt’s cam and ejecting/feeding port are located on the top of the receiver, while the bolt handle is the same style as HK G36’s charging handle except that it pivots 45 degrees vertically while G36’s pivots horizontally.