Seekins MCSR rail- a little over 12" long and inside diameter is 1 3/4" (for those with a suppressor)
Used but in great shape
https://www.joeboboutfitters.com/Seekins-Precision-AR-15-MCSR-V2-Keymod-Rail-p/skn-mcsr-v2.htm
$100 obo
Pm is best
Sent from my SM-N910V using Tapatalk
Used but in great shape
https://www.joeboboutfitters.com/Seekins-Precision-AR-15-MCSR-V2-Keymod-Rail-p/skn-mcsr-v2.htm
$100 obo
Pm is best
Sent from my SM-N910V using Tapatalk