15” Seekins SP3RV3 rail, this has the flat bottom and MLOK. It’s been used and is missing a screw (see pictures)
150$ Insured and shipped via usps
SP3Rv3 Rail System
Precision rifle stocks have a wide or flat bottom forend for stability, the SP3Rv3 from Seekins Precision brings this performance to an AR15 handguard. The design of the SP3Rv3 was born from experience shooting 3 gun and long range sniper competitions whe
seekinsprecision.com