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CAV-15 MKII AR15 Polymer Stripped Lower Receiver - Black AR-15

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Product Description

Stripped Polymer AR-15 MKII AR15 lower receiver.  Works with standard AR15 parts and AR15 spec uppers.   Durable and light weight.  13 inch length of pull.   Integrated buffer tube, pistol grip and fixed stock give this design its strength.   INCLUDES TAKE DOWN AND PIVOT PINS, will require the installation of a lower parts kit, carbine buffer and carbine buffer spring. Light weight, Durable with lifetime warranty*. Required installation of a lower parts kit, carbine buffer and carbine buffer spring. 1lb 5.2 oz. 

Warranty Information

Limited Lifetime Warranty

Other Details

Black Friday Special:
Black Friday Special

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Product Reviews

  1. very good 5 Star Review

    Posted by on Feb 23rd 2018

    Very happy with my purchase

  2. InrangeTv turned me to this product. 4 Star Review

    Posted by on Feb 6th 2018

    This is honestly the best polymer lower out there...the best overall? Maybe not.


    :Light weight
    :sturdy integrated stock and pistol grip
    :nice feeling grip
    :high quality, no visable burrs
    :good price
    :arrived quickly


    :the take down pins aren’t captured
    :it’s unnaturally difficult to mount the lower to the upper via takedown pins
    :I’m wondering how long term polymer is, I already have anti rotation pins on standby

    Now to address the takedown pin issue, the pins are extremely hard to push through my uppers mounting holes. I have to tap them through with a screwdriver (versus using your fingers on traditional lowers). The holes line up perfectly however so I believe this is just the nature of the beast. It’s is not as easy to pop the rear pin and clean the gun as it is with traditional lowers, but the fit between the upper and lower is astounding. No wiggle at all, tight fit but they aren’t wedged together neither. I highly recommend.

  3. Minor fitting required, but well worth it 4 Star Review

    Posted by on Jan 1st 2018

    Impressively light and sturdy. Mine required some minor handfitting since the takedown pin holes were less than a millimeter off from the holes on my upper, but due to the polymer construction this was easily accomplished with just a little light sanding.
    I am pleased and have already sold someone else on it. Many thanks to InRangeTV for bringing this to my attention.

  4. excelent build quality 4 Star Review

    Posted by on Jul 14th 2017

    I purchased this lower as part of a race gun Idea I had. I was very sceptical of how it would feel and had a regular lower ready to go. I was very happy with the fit and finish of this lower and the rugged feel to it. It looks and feels as tho it can survive a beating. The only reason I did not give a 5th star is because I believe the grip could use some texture. Fortunately it is plastic and anyone who can modify a handguns grip texture can modify this as well but it would be a nice feature from the factory.

  5. inRange Approved A1 Style Lower 4 Star Review

    Posted by on Jun 28th 2017

    Awesome, well made lower. It is so light that it will heavily bias the weight of the weapon to the front, even with A2 style handguards. I was sent here by inRange's ridiculous torture test where they ran over, performed push ups over, broke 1x4s and even shot it and still worked. Don't believe me?
    Torture test: Subsequent courses of fire:
    https://youtu.be/xjhvi8c0MF4 https://youtu.be/CoLp3AWeXOM

    It BARELY loses a point with me because I planned to use this lower for general marksmanship and hunting, but the takedown and pivot pins are so tight changing uppers REQUIRES a hammer and punch. I hope that this is corrected in a Mk3 where metal detente supports (a la buffer detente pin) are added for captive pins, because as of now its just not something that can be done in the field. I, being formally trained on the M16A2, I would like to see GWACS offer a buttpad expension to match the A2's length of pull for taller men such as I (6' tall). I wish I could give it a 4.5 as the length of pull is as advertised and the tight pins are a thing mentioned in reviews of the lower online. Overall I'm very impressed and satisfied with this product and you will be too.

  6. Solid And Pretty Clean 4 Star Review

    Posted by on Aug 19th 2014

    The reciever/stock is lightweight but feels solid. There was very little flash to clean off at seams, although they should work on a way to buff out the sanding marks at visible seams.
    Milspec lower kit fit right in. Hoping it performs "under fire" as well as it does in assembly.
    One improvement would be a way to anchor a sling lug somewhere near the back of the trigger for single point sling.

  7. Great Lower for a Great Price. 5 Star Review

    Posted by on May 14th 2014

    Great looking lowers for an exelent price. I am super excited about the product and expect to buy many more. Very Solid/Sturdy lower compared to other Poly lowers i have handled, yet are light wieght. Thank You GWACS!

Other Information

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Jenks, OK. 74037
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