For Sale is a very lightly used Rainier Arms 15" MLOK Urban Combat Rail.  I mounted it to an AR, function tested the AR and haven't used it since and don't need it. Everything you need for mounting and the instructions are in the box. Total weight for all mounted components is 12 ounces.  It has a steel reinforced QD point built into the rail.

Rainier Arms Urban Combat Rail features MLOK slots at the 3, 6 & 9 o'clock positions for adding user defined rail sections. Anti-Rotation QD sockets at the 3 o'clock & 9 o'clock positions.

Features:

CNC machined extruded 6000 series Aluminum
Hard Coat Anodized Milspec Type III. Class 2
Barrel Nut - 7075 Aluminum
17-4PH Cored Stainless Steel Rail Mounting Hardware - Patent Pending
Anti rotation tabs to easily align rail to upper receiver
No Barrel nut shims required for installation
1.315" Interior Diameter
Includes barrel nut wrench
Compatible with most known low profile adjustable and non-adjustable gas blocks
Made & Assembled in USA
Total Weight Including Mounting Hardware: 15" - 12 oz

Asking $100.