"Picatinny Rail Mount Black AR15/M4 Improved 6" in Springfield, Massachusetts For Sale
Price: $11
Type: Sport,
For Sale
- Private.
"
Mako Group UPR16/4-B Picatinny Rail Mount, Black AR15/M4, Improved, 6
Makes issue handguards capable of mounting Picatinny devices in 6 o'clock or 12 o'clock position."Price: $11.2
Source: http://www.sportsmanstooloutfitters.com/picatinny-rail-mount-black-ar15-m4-improved-6.html