SGA Moss 500 / 590 Receiver Sling Mount XR2 The bolt hold-open feature locks

The bolt hold-open feature locks the bolt back when it’s used with firearms designed to lock back on GLOCK-pattern magazine followers

Features Allows quick

Convex shape for smooth positional adjustments

Lens and frame combination of the Helix is ballistic rated to Z87+ and MIL-PRF 32432 standards

SGA Moss 500 / 590 Receiver Sling Mount XR2 The bolt hold-open feature locksProduct Details The SGA 590A1 SGA Shotgun Stock and one point clip in style attachments such as the MS3 Paraclip, the HK hook, ITW MASH hook, and others. Made from precision cast steel that is QPQ salt bath nitride treated for wear and corrosion resistance. Dedicated fit for the Magpul SGA Stock, the Receiver Sling Mount can be installed on either the left or right side of the front of the stock. Made in the USA. STEEL CONSTRUCTION Case hardened steel