A.R.M.S. Military Mounts - Super Extended Swan® Sleeve.
A.R.M.S. Inc. Military Mounts The Dovetail Rail dimension standard for nearly 20 years. A.R.M.S., Inc. specializes in advancing the capabilities of small arms weapons in function, reliability and accuracy. #38 S-Ex - A.R.M.S. Military Mounts - Super Extended Swan® Sleeve. Provides a platform that is semi-permanent to the M16 and other similar weapons. When installed to the A.R.M.S.® designed M16A3 flat top receiver, the Sleeve height provides a patented flip up rear sight. The rear sight provides an A2 type windage adjustment with a standard 250 - 500 meter range zero, via the front sight bead. Minimum order is $100.00. Orders below $100.00 will incur a $10.00 small order fee in addition to any shipping and handling charges.