This product has been discontinued.
A.R.M.S.® #50™M Bi-Level S.I.R.® System
Military 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 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. Installation requires the removal of the delta ring.
Weight: 15.0 oz*
*Wt. measured w/o 1,2,3 rails and sling swivel which are included with the S.I.R.® system. Rails can be removed/added as needed.
100% MADE IN THE USA.