Used A.R.M.S.® #38™ EX SWAN® SLEEVE
armsmounts.com
$150
A.R.M.S.® #38™ Ex SWAN® Sleeve > ARMS
A.R.M.S.® #38™ Ex SWAN® Sleeve 5.56 cal. 8.46", which provides approx. 1 1/2" of attachable rail beyond the receiver, and has the #40L™ rear flip up sight built in. The SWAN® Sleeve provides a platform that is semi-permanent to the 5.56 cal M16 type weapons equipped with a flat top receiver...
armsmounts.com
$150

