Machined to the exacting specifications of the Really Right Stuff ARCA-SWISS dovetail standard, the ANNEX Arca-Swiss to Q-Sert adapter rails have integrated hard-stops at the end of the rails to prevent the rifle from sliding off the ball-head / tripod, integrated threaded holes to install your own (optional) stop-screws at the front of the rail, and are made from aerospace-grade 7075 aluminum finished with dye-free clear hard anodizing.

Overall Specs:

• Adapts Q-Sert rails to Arca-Swiss tripod heads
• 3.06" Overall Length
• 1.3oz -- Ultralight 7075 Aluminum
• Genuine Magpul Mlok Nuts / Hardware
• Includes 10-32 Q-Sert screws and (optional) 6-32 stop screws
• Integrated R-LOCK® Technology; officially licensed from / compatible with Really Right Stuff Heads