The Kratos M4 Receiver Extension is a 6-position, Mil-Spec sized, AR15 / M4 profile buffer tube and is designed to work with Mil-Spec dimensioned M4/AR-15 type collapsible stocks.
Constructed of impact-extruded 7075-T6 aluminum with Type III, Class 2 hard coat anodizing for an extremely hard, abrasion resistant surface.
Finding the perfect length of pull is easy with six adjustable stock positions.
Weight: 3.9oz
Material: Impact Extruded 7075 aluminum
Finish: Type 3, Class 2 hardcoat Anodize
UN-2A threads
Made in USA
Nick Burchett (verified owner) –
Definitely a solid tube! Certainly feels a bit “Heavier,” than the Geissele tubes that I have, but doesn’t change the balance / function of the gun at all. Love the 6 positions, as it allows a lot smaller interval with changing the stock position. Overall 10/10, and I’ll probably order a few more for the other rifles that I have. Well done!
panteltactical.com (verified owner) –
Amazing quality across the board with all the Kratos parts and this is one of them. Attention to detail is what these guys are all about.