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Krytac Adjustable Crane Style Retractable Stock for M4 Series AEG Rifles - Black

ID: 52422 (Stock-KT-003-00U)
Krytac / Kriss USA52422
4.3 stars, based on 4 reviews
Krytac Adjustable Crane Style Retractable Stock for M4 Series AEG Rifles - Black
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MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
The KRYTAC Adjustable Battery Stock is constructed of a dense, high quality polymer and it offers more user friendly features than the standard stock. The body of the stock features a small window so the user can see their preferred stock setting when used in conjunction with the KRYTAC Buffer Tube. The butt plate is rubberized and textured to provide a solid foundation for the shooter when firing. There are 2 QD sling swivel points on the stock. Also, the stock adjustment lever features two fins near the fulcrum which make removing and reattaching the stock to the buffer tube a simple operation. Finally, the battery compartment is designed to fit the nunchuck style battery in the tubes, a stick type battery in the buffer tube, and small LiPo brick battery in the butt plate cavity. The KRYTAC adjustable battery stock is a worthwhile upgrade for AEG platforms.


  • High strength polymer construction
  • Standard sling & QD sling swivel mount (swivel not included)
  • Crane style battery compartments
  • Removable rubberized recoil pad
  • Stock position indicator

  • Color: Black
    Material: High strength polymer

    Manufacturer: KRYTAC

    About Krytac / Kriss USA

    KRYTAC, established in Southern California in 2013, is a cutting-edge product development team of the Switzerland-based firearms manufacturer, KRISS Group.

    The KRYTAC team is comprised of highly experienced professionals who have come together for one common goal, to elevate your expectation of performance, value, and service.

    4 Customer Reviews

    (Write a review)

    by Christopher D. on 07/23/2017
    "I am not a huge fan of the Krytac rifles but they were definitely paying attention to detail on this stock.

    Its SOOOOO easy to get into the rear for rear wired rifles which is exactly why I bought this.

    Its almost as comfortable as a Magpul stock too.
    by Gage F. on 04/11/2016
    "I don't know if I'm just an idiot, or if the stock just isn't compatible with my gun. I have a G&G CM16 Raider-L and after about half an hour of hammering it into the buffer tube I finally got it to go on, only to find out that it is very stiff and won't retract at all and it's more of a fixed stock now. It's not that I don't know how to put on a stock. It was just extremely stiff and required a lot of force to be put on. I'm more than sure this is all due to my arrogance but I thought I'd voice my complications. The stock itself is really nice and It feels great. The position it's currently in is where I normally have it so not having it retract isn't really that big a deal to me. It's ergonomic and comfortable and it makes my rifle look bad ass. I wouldn't let my issue tamper your decision to buy it, but it's something to keep in mind.
    by Rene A. on 10/29/2015
    "Best M4 stock Iíve seen and used!
    Itís practical, itís comfortable, and itís everything I want a Retractable stock to be. I was so used to standard M4 LE Stocks that I didnít know what I was missing out on, but once I used this stock I will never go back to those thin uncomfortable standard stocks. This stock came standard with my Krytac SPR but knowing what I know now, I would purchase this Krytac Stock in a heartbeat even if it didnít come standard and hereís why.

    Build Quality:
    Krytac went ahead of the curve to make their unique Stock as solid as possible. Made of a super robust polymer with a nicely etched Krytac logo on the side, you know this stock isnít a joke. However, like most stocks even on the real steel models, it wobbles. I am yet to see a retractable stock that doesnít wobble out of the box so donít expect this stock to fix this long running quirk.

    The cheek rest is wide enough to cater to players who press rest their face up against the stock, but also enough so it isnít cumbersome to players who rather not rest their cheek on it. The wide stock not only provides a firm hold to your rifle, it also greatly increases the amount of battery space inside but Iíll get to that in a second. Butt plate is made of a real nice non slip rubber, so for you guys running with thin shirts (or shirtless) on the field, this butt plate wonít chafe against your shoulder. The Plate has an ergonomic shape that forms to the curvature of your shoulder, an added plus +

    From QD mounts to 6 position retractable settings, this thing is a solid performer. Everything that you want in a retractable stock ITS HERE. At the top, the stock has a small hole to see which position youíre on for those buffer tubes with numbered positions out on the market. The lever unlike most ret. Stocks, doesnít protrude out and is instead flush to the angle of the stock. Removing the stock is also as simple as removing any standard Ret. Stock. Pull the lever out (not press) and slip it right off the buffer tube.

    Battery Storage:
    To remove the butt plate, simply press in the two tabs on both sides and boom! Lots and lots of battery storage. I am able to fit a Turnigy Nano Tech 11.1 2000mah 3 stick Lipo battery without a problem. I would still have room for an extra small battery, or if I really want to, fit a Mosfet or lipo alarm connected to the battery. It is possible to fit a small brick type battery in the rear where the stock meets the butt plate but I definitely recommend those nunchuck or stick type batteries for this stock. The battery storage is probably one of the best features of this stock, but please make sure not to pinch your battery wires when clipping the butt plate back on.

    -Solid plastic build quality
    -6 position collapsible Stock
    -Indicator for numbered buffer tubes
    -Exceptional comfort
    -Easy removable ergonomic butt plate
    -Tons of battery storage (7.4 or 11.1 Turnigy Nano Tech stick type battery recommended)
    -2 QD swivel mount on either side
    -Rectangular opening to loop strap around stock
    -Lever sits flush against stock
    -Etched Krytac Logo

    -Lever has a bit of play to it
    -QD mount may wear out soon or under high tension
    -And the most common oneÖ..wobble. Yes like I said even real steel stocks wobble. Some electrical tape around the buffer tube or the inner lining of the stock will fix this infamous issue.

    For $45 dollars youíre getting what youíre paying for. Krytac designed a unique attractive Ret. Stock you wonít find on any other AR platform. I 100% recommend this product to anyone looking to upgrade from their standard stock or simply looking for something different. Comfortable, huge battery storage compartment, superb quality, I rate this Stock 5***** stars.

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