#50™C Bi-Level S.I.R.® System

#50™C Bi-Level S.I.R.® System

Fits flat-top equipped weapons with carbine length gas systems. The #50™ is a slim line S.I.R.® featuring a 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.


Wt. 14.5 oz*


*Wt. measured w/o 1,2,3 rails and sling swivel which are included with the SIR system. Rails can be removed/added as needed.

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