MAX-11Sk Mod 1 Upper Receiver #528
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The MAX-11Sk Mod 1 upper receiver can be used with either the M-11/9 submachine gun or semi-auto pistol lower receiver. This upper receiver is also a great
upper to use with your Tungsten Slow Fire Bolt (CF-W). Features a full
length accessory rail on top and bottom. Made from 6061 aluminum and finished in black, hard coat anodize. 5-3/4 inch length barrel
threaded 1/2-28 at the muzzle with Bull Nose Thread Protector installed. Cocking piece is non-reciprocating. Does not include a bolt assembly.