Standard Mfg STD-15 5.56 16 LH ORC MOE Drop In

What makes the Standard Manufacturing Company's AR-15 different than everything else out there you ask? Well for starters we machine the lowers and uppers completely in-house to the quality level you expect from a company that has mastered the art of gunmaking. - Muzzle Device: A2 Flash Hider or Pinned Compensator (For NJ and MA) - Barrel: 1/9 Twist 4150 CMV Government Profile with M4 Feed Ramps and QPQ Nitride Coated inside and out. - Gas Block: Rail Height Railed Gas Block - Handguard: M-Lok Compatible Polymer Drop in - Gas System: Carbine Length Direct Gas Impingement - Standard Delta Ring Pack with Standard Barrel Nut - A3 Upper Receiver Anodized Finish - Standard Charging Handle - SB Nitride Carrier Bolt Carrier Group and SB Nitride Bolt Made of Carpenter 158 Steel - Standard Milspec Lower Receiver 7076-T6 Aluminum and Anodized Finish - Milspec Lower Parts Kit with Stainless Steel Trigger and Stainless Steel Speed Hammer - Pistol Grip: Standard A2 Grip - 6 Position Carbine Buffer Tube - Carbine Buffer (Standard Weight) - Receiver End Plate with Ambi Single Point Sling Loops - Stock: Tactical Adjustable with Locking Lever (Will be pinned for NJ and MA) - 30 or 10 Round Black Aluminum Magazine