Features:<br />100% brand new and high quality!<br />Armorer's Best friend 5.56mm Multi Combination Tools， Made from 4140 powder coated steel. Comes with receiver tube stock nut wrench old style 1 point<br />Length of 11.75 inch， 1/2 inch square opening for torque bar<br />A1/A2 flash hider slot / receiver extensions. Carbine tube stock castle nut wrench new style 3 point<br />Removal and installation of 5.56mm Caliber barrels. Install and disassemble free float tubes， barrel nut<br />Comes with barrel nut， torque/tension wrench， buttstock tube， compensator， and castle nut<br /><br />Specifications:<br />Length: 11.75 inch     <br />Material: Black anodized aircraft grade aluminum <br />Color: black<br />Size:33x5x2cm<br />Package size: 34x6.5x3cm<br /><br />Package Content:<br /><br />1 x Wrench