1x ARMS #50C-TR rail (used but not abused) - $225 [SHIPPED]height=8
|A.R.M.S. #50C-TR S.I.R. SYSTEM BILEVEL w/Detachable Top Rail - Carbine Length Civilian Version Bi-Level Slimline, for 5.56 cal. Carbine length M4's|
Fits flat-top equipped weapons with carbine length gas systems. The #50 is a slim line S.I.R. ® featuring a detachable bi-level top dovetail rail. The forward rail section is lowered to allow co-witnessing of heads up display type optics when used in conjunction with our #40™ series rear sights and a standard height front sight post. This civilian version requires no modification to the weapon.
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