Full-length Picatinny rail for optic mounting. Safety features include: 1911-style ambidextrous manual safety; an integrated trigger safety; neutrally balanced sear with significant engagement and strong spring tension; and hammer catch to help prevent the hammer from contacting the firing pin unless the trigger is pulled. Also includes: one Ruger-5.7 steel pistol magazine, ambidextrous magazine button, M-LOK QD sling socket, hand stop and hex wrench for disassembly. UPC 736676193035 Action SEMI AUTOMATIC Barrel Length 10.5 BARREL Caliber 5.7X28MM Capacity 10 ROUNDS Finish BLACK Weight 4.1 LBS.