Designed for those who want optimum optic accuracy without the need of combat built-in iron sights, but need the other capabilities as found on the #38 S-Ex/38 Ex Military Swan® Sleeve. This OSR(Optical Sight Rail) slides over the receiver from the rear of the weapon and extends 14". It raises the rail by 1/2" while protecting the rifle dovetail rail. Developed in 1998 and released in 1999. US Patent No. 5,142,806.
This item or some of it's components cannot be exported from the United States of America. US Military APO Addresses exempt.