CALIBER: .45 ACP - WEIGHT: 5.2 LBS - O/A LENGTH: 15.26 - BARREL LENGTH: 8.5 - HEIGHT: 7.75-11.30 - WIDTH: 2.4-3.6 FOLDED - MUZZLE THREADS: .578-28 RH - RIFLING: 1:16 RH/ 6 GROOVES - Short Recoil/Delayed Blowback operating system - 8.5 Cold Hammer-Forged Chromoly steel barrel - User-configurable rail system -options include Picatinny segments sling adapters polymer rail panels offset mount - LWRCI Rail Panels at 3 6 and 9 with a hand stop on the 6 o'clock rail - US-manufactured UMP magazines; ships with two 25-round mags (lower cap magazines available for different jurisdictions) - LWRCI AR Pistol End Cap w/QD Mount - LWRCI Advanced Fire Control Group - Aluminum and steel construction - Premium Hardcoat anodized nitride nickel boron surface treatments throughout - LWRCI Ultra Combat Grip - Magpul MBUS Pro sights - Shoots suppressed using a booster/Neilson device - Reversible nonreciprocating folding charging handle - Fully Ambidextrous lower controls: AR Selector bolt catch grip and hammer/trigger - Paddle Style Mag release for easy load and mag change