L&S LS9MM55-28 5.5 AR9 NITRIDE BRL 1/2X28
$81.99
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L&S LS9MM55-28 5.5 AR9 NITRIDE BRL 1/2X28
$81.99
Lead & Steel Llc LS9MM5.5-28 AR9 9mm Straight Profile Black Nitride Chrome Moly Vanadium
Blowback gas system, no gas block or gas tube needed. Compatible with standard mil-spec uppers and dedicated uppers