GBRS GROUP 2.91 FTC (FLIP TO CENTER) 30MM MAGNIFIER MOUNT Utilizing UNITY™ Tactical’s revolutionary Flip-to-Center technology, the 2.91 FTC (Flip-to-Center) brings any magnifier to the 2.91 height to pair with the GBRS Group Hydra Mounting Systems. The 2.91 FTC Mount employs a simple force-to-overcome mechanism and stows the magnifier below the optical sight plane and completely within the footprint of the weapon's receiver when not in use. This eliminates the flip-to-side placement of legacy products, in which users receive all the benefits of magnification when required with no occlusion of sight pictures when stowed. SPECIFICATIONS: Height: 2.91" to Optic Center Line Interface: 30mm Ring Mechanism: Force-to-Overcome Rail Mount: QD lever Dimensions: 1.45" L x 2.72" W x 2.77" (stowed) or 3.61" (raised) Materials: 7075 T6 Aluminum Weight: 4.9oz Coating: Type III Hardcoat Anodized Compatibility: 30MM: Compatible with any magnifier with a 30mm body, such as Aimpoint 3XMAG, Aimpoint 3X-C, and others.