Barrel Length: 16" Barrel Material: 4150V Chrome Moly Vanadium Steel Barrel Profile: M4 Chamber: 5.56 NATO Twist Rate: 1 in 7” Extension: M4 Gas System: Carbine-Length Gas Block Type: F-marked Front Sight Base Upper Receiver: Forged 7075 T6 Aluminum Receiver Style: M4 flat top with feedramps Receiver Finish: Hardcoat Anodized Forward Assist: Yes Dust Cover: Yes Handguard Type: Polymer Handguard Style: Magpul, Black Handguard Length: Carbine-Length Bolt Steel: Carpenter 158, Mag Phosphate coated Bolt Carrier Steel: 8620, Chrome lined Staked Gas Key: Yes Lower Receiver: Forged 7075 T6 Aluminum Receiver Finish: Hardcoat Anodized Fire Control Group: Single-Stage, Enhanced Polished Trigger (EPT) Buffer Tube: 7075 T6 Aluminum Stock Adjustment: 6-position Stock: Magpul Carbine Stock, Black Length: 33" Weight: 6.5 lbs. Magazine: 30 Round Magpul PMAG Includes: Magpul MBUS Rear Sight, Black ADD $25 FOR SHIPPING AZ,MUST SHIP TO A FFL  $600.00 OTD