Quick view A.R.M.S., Inc. Arms Aimpoint Comp Rg Throw Lvr Mt $154.26 Designed exclusively for the Aimpoint(R) Comp. ML 1" ML 2 and ML 3 sights. Low standard height allows perfect Red Dot co-witnessing on M16/M4 with A.R.M.S.(R) #38(TM) Swan Sleeves and S.I.R.(R) Systems without a spacer. A full spacer is required if... Compare Add to Cart