NcSTAR AR15 Trimount C / H Scope Mount. This Tri-Arm Tripod Mount is constructed of a heavy duty double layer steel construction. There are two positions to choose from: M (Mounts forward) or RH (Raises height). This height provides you with maximum scope clearance with greatest scope objective angle. With a quick adjusting mechanism this ncSTAR Tri-Arm Mount will have your Rifle Scope in place in no time. Easy to install - just remove the rear scope nut and mount the ring on the back of the plate to remove the scope. No tools required - simply remove and reinstall the ring until it fits snugly in place. The rear scope ring has a cross slot so you can easily swap between Red Dot Sights and conventional scopes. Specifications for NcSTAR AR15 Trimount C / H Scope Mount MTRIH: Model#: MTRIH Description: AR15 Trimount C / H Scope Mount N. W: 5.65 oz. Length: 5.24 in. Gun Model: AR15 Package Content: Scope Mount - AR15 Trimount C / H Scope Mount We offer complete line of NcSTAR Rifle Scope Mounts Rings and Bases. For our complete selection of products by NcSTAR on sale please visit our NcSTAR page. For more Rifle Scope Mounts Rings and Bases please visit our Rifle Scope Mounts Rings and Bases store section.