Meprolt Frbs 4 Dot Rear/orng Frt Color:Black Designed specifically for the A1s

Designed specifically for the A1s heavy walled barrels

This mount is compatible with other manufacturers spacers

for a more modern rubberized band that is easy to remove if the user wants to convert to ARC adapters (or convert back to a headband)

the AUS Mount attaches to any M1913 Picatinny rail via the anti-snag spring-loaded nitrided steel clamp and custom bolt mounting system which can be tightened with either a 5/32 hex or a flat blade driver to sit flush with the body of the mount for a low-profile

a wide band of elastic for retention and small flap to secure contents

Meprolt Frbs 4 Dot Rear/orng Frt Color:Black Designed specifically for the A1sMeprolight Frbs, Flip Backup Sights, 4 Dot Rear, Orange Hyper Bright Front, Fits Picatinny Rail, 403240 Model: FRBS Product Type: Sight Fit: Picatinny