Forged through relentless testing, the ALPHA6 aluminum rings have proven their reliability in some of the world's most demanding environments. Sig Sauer's proprietary aluminum alloy delivers exceptional strength while remaining flexible enough to conform precisely to the riflescope without compromising the main tube. Offering the ideal combination of lightweight construction and rugged durability, the ALPHA6 system is built to withstand everything from coastal humidity to mountain extremes. Compatible with 34mm main tubes and multiple sight heights to accommodate different optics Machined from Sig Sauer's proprietary billet aluminum alloy, this component offers an exceptional balance of strength, lightweight design and durability The type III flat black hard anodized finish offers maximum wear resistance and longevity Constructed with black oxide hardened steel hardware for enhanced durability and corrosion-resistance Compatible with M1913 and weaver mounts, allowing for versatile attachment options A leveling tool kit is provided with all compatible ALPHA6 ring sets for precise installation Covered by Sig Sauer's infinite guarantee, ensuring long term reliability