The Wilson Combat Battlesight features a serrated rear blade with recessed U-Notch. Manufactured of parkerized carbon steel, the Battlesight is a drop in installation with a dovetail locking mechanism to ensure the sight stays in place once mounted. High profile, ledged shape allows for one hand recocking.Notes:Wide 0.145" rear notch allows a crisp sight picture even in low light situations High profile design is 0.020" taller than standard factory sights Fits the 463 style dovetail