Presma Skeletonized 223/5.56/308 Buttstock for 6 Position Mil-Spec Tube, Purple Anodized Aluminum. With Pad [AAST25-PUR]New Design! Presma Skeletonized 223 5. 56 308 Buttstock for 6 Position Mil Spec Tubes, Purple Anodized Aluminum. Includes Pad. SKU: AAST25 PUR Super lightweight Skeletonized Aluminum Construction. Machined and Anodized in the USA Fits Mil Spec Adjustable Buffer Tubes Trigger lock type adjuster Includes 2 QR release holes Recoil pad included Color: Purple Weight: 9. 1 oz Height: 5. 5" Length: 7" Fits: Mil Spec Adjustable Buffer Tube UB_ASBT04, not