PRODUCT SPECIFICATIONS:Dimension 4.55 X 7.20 X 36.45Height 4.5500Width 7.2000Length 36.4500AR-15 ACCESSORY YCALIBER 223 REM/5.56 NATOBARREL LENGTH IN INCHES 16RATE OF TWIST nanBARREL MATERIAL STEELBARREL FINISH NITRIDEOTHER FEATURES: PENCIL BARREL W/INTEGRAL 3 PORT BREAK FORGED UPPER RECEIVER 13" CARBON FIBER M-LOK HANDGUARD FAXON GUNNER LIGHTWEIGHT BOLT CARRIER GROUP ADJUSTABLE GAS BLOCK AMBI CHARGING HANDLE WEIGHT 3.1 LBS.MADE IN THE USANO DIRECT SHIP TO CALIFORNIA