As part of the PLx line, these 34mm mounts meet the exacting demands of professional use, offering impeccable craftsmanship and advanced features.PLx Scope Mounts are 100% US-made from 7075 Aluminum and feature Grade 12.9 steel hardware with a proprietary Electroless Nickel coating for unmatched durability in austere conditions. The innovative three-bolt design distributes recoil evenly with over 6,500 lbs of clamping force. Combined with dual machined recoil lugs and 3 cross bolt lugs, PLx mounts can resist heavy impacts and sustained gunfire without ever shifting your zero-all while remaining lightweight and compact. Like all of the products, this mount is backed by PrimaryFeatures:7075 Aluminum construction12.9 Grade steel hardwareThree bolt design for increased strengthDual recoil lugsFor 34mm scope tubes1.5" Optical centerlinePrimary Arms lifetime warrantySpecifications:Finish: Hardcoat AnodizedOptic Series: PLxOptic Type: 34mmPlatform: M1913 PicatinnyWeight: 6.2 oz.