Compatible with all 9mm roller-delayed blowback firearms Large size facilitates access under stress Knurled surface ensures your fingers won't slip Straight design is ideal for right-handed shooters, while the angled design is ideal for left-handed shooters Machined from a single block of tool steel Finished in HK Black SL DuraCoat Manufactured in USA by Zenith Firearms Counts as 1 U.S.-made part for 922(r) purposes Mfg: Zenith Firearms