FEATURES:-Black oxide finish-Made of hardened American steel-Will easily withstand the impact of high powered semi & full auto weapons-Anti rotation feature protects your receiver from wear-Side plates will protect your finish-Easy installation - No special tools required for installation or removalPRODUCT SPECIFICATIONS:Dimension 0.30 X 4.10 X 4.40Height 0.3000Width 4.1000Length 4.4000TYPE/COLOR AR TRIGGER PINS SETSIZE/FINISH BLUEDMATERIAL STEELAR-15 ACCESSORY YOTHER FEATURES: NO SPECIAL TOOLS REQUIRED, MADE IN THE USA.NO DIRECT SHIP TO CALIFORNIA