USED Tier One Aimpoint Acro Riser QD Black T1MUB-104 BLK. Providing a strong and stable base for your Aimpoint sight it comes in both black and sand colors with a 30 micron anodized finish. Perfect for those seeking expert level accuracy and reliability. Specifications for Tier One Aimpoint Acro Riser: Manufacturer: Tier One Finish: Anodized Gun Make: Universal Gun Model: Universal Gun Type: Universal Fabric/Material: 7075-T6 Aluminum Optic Cut: Aimpoint ACRO Length: 1.8 in Width: 2.1 in Height: 1.75 in Weight: 16 g Gun Rail: Picatinny Features of Tier One Aimpoint Acro Riser Precision-engineered from a single billet of aerospace-grade aluminium Package Contents: Tier One Aimpoint Acro Riser Tier One T1MUB-104 BLK: Aimpoint Acro Riser QD Black