Product DescriptionTroy&&';;s M4 Front Folding BattleSight delivers rugged reliability and precise adjustment for AR-15/M4 platforms. Built from aircraft-grade aluminum with stainless steel components and finished in MILSPEC Type III hardcoat anodizing, this front sight installs easily and folds flat at the push of a button. A stainlesssteel crosslocking system keeps the sight upright and zeroed under extreme conditions, and each click provides 0.50 minuteofangle adjustment for accurate zeroing. Designed for use on sameplane rail systems, it provides a standard M16 A2 front sight post and can cowitness with red dot optics.Product Highlights Front folding iron sight for AR15/M4 platforms with standard M16 A2 front post Stainlesssteel crosslock keeps the sight upright and zeroed under heavy use Pushbutton folding mechanism; zerocanting attachment system Each click equals 0.50 minuteofangle adjustment for precise zeroing Machined T6 aircraft aluminum with MILSPEC Type III hardcoat anodized black finish; Made in the USA Specs Compatibility: AR15/M4 platforms; sameplane Picatinny rail systems (will not work with gas blocks higher or lower than receiver) Construction: T6 aircraft aluminum with stainless steel components Finish/Color: MILSPEC Type III hardcoat anodized, black Adjustment: 0.50 minuteofangle per click Mechanism: Pushbutton folding; stainlesssteel crosslocking system; zerocanting attachment Sight Post: Standard M16 A2 front sight Country of Manufacture: USA UPC: 812699010686 Manufacturer Part Number: SSIGFBSFMBT00 Brand: Troy Ind Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.