while i am waiting for the 9mm barrel i thought i would assemble the rest of the 9mm kit.
the pro-mag device had to go in from the top so i had to remove the bolt hold device. as you all know that tiny roll pin is sort of a pain to get out.
once out i found the pro-mad fit pretty snug and it looks like it is going to have a functional BHO. not a bad unit for $34==
the CMMG ramped bolt seems to function as slick as a m-16 5.56 BCG.
it is not rough in any way on cocking the hammer. i don't see how it is going to be any more rough on the pins than any of the gas operated systems.
the mag device the bolt fit like a glove in my TNW billet lower and colt a1 upper.
i started out trying to remove the BHO pin from one of my DSA lowers--but that was too difficult.
it is looking like it is going to be a smooth functioning unit. when the barrel and mags come in i'll try it out.