AR-308 Lightweight Lower Receiver- Single- SALE

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0.43 LBS
Current Stock:


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DPMS Gen 1 Style lower receiver for the 7.62x51/ 308 cartridge

This item must be sent to an FFL dealer


  • Half the weight of a metal lower

  • Lifetime Guarantee

  • Easy Assembly

  • Tactical Colors available 

The AR-308® Receiver is designed to be stronger and lighter than anything on the market today. We invented the hybrid AR lower receiver and we used that experience in designing the AR-308. We have used our TN ARMS 15 lower in every caliber from .22 LR to 50 BMG. The AR-308 is 30% bigger and includes reinforcement in key areas. This lower receiver assembles just like an AR15 style lower. AR308 lpk is available here: with the roll pin (like an AR15) we use instead of a screw.

The AR-10 type rifle does not have dimensional standards like the AR-15 series does. Not all upper receivers will fit as well as others. We recommend upper receivers from Aero Precision, Head Down Products, Delta Tactical, and the Palmetto State Gen 2. Any AR-15 style trigger will fit fine. 



 Weight is 6.3 ounces





  • 4
    Nice product

    Posted by Kevin whalen on 21st May 2020

    Nice product easy assy

  • 5
    308 lower

    Posted by Jon Hallock on 24th Feb 2020

    Shipping took forever however they were going threw some changes fit and finish looks good functions as it should overall happy with product just not so much with the shipping I would definitely recommend these lowers

  • 5
    better made then what I expected, it was cleaned up very nicely

    Posted by THOMAS HEPLER on 2nd Feb 2020

    The lack of communication was a bit alarming, however I attribute it to it being during the holidays that I made the purchase.

  • 5
    Lr 308 lower

    Posted by AJ Shaw on 25th Dec 2019

    The lowers are great in my opinion and perfect price point these are the only lowers I buy

  • 5
    Lightweight AR10 tecievet

    Posted by Brian on 13th Nov 2019

    Works flawlessly on my AR 10 & looks nice too.

  • 5
    Excellent product

    Posted by Michael on 5th Nov 2019

    Lower took a little longer to arrive. but made up for that with an engraving. well built and very light weight. Lower went together with upper nicely. looks great with setup will be purchasing another in the near future to build one for my father. He also liked the setup.

  • 5
    Not to shaby.

    Posted by Nikolas Sink on 20th Oct 2019

    Well first off I haven't shot it yet but I assembled both of mine and they are light and durable as all get out. I wailed one with my mallet just to see and it didnt even faze it.

  • 5
    AR-308 Lightweight Lower Receiver

    Posted by John on 29th May 2018

    Customer service is always super friendly and helpful. Lower went together easily and used the TAC pivot / takedown pins that fit perfectly. I’m just waiting on my upper now.

  • 4
    Only one complaint

    Posted by Justin on 19th May 2018

    Overall, this lower receiver is great. I built it without any issues, the brass inserts to strengthen joints/weak spots on the polymer frame work really well, and the look is good. I am using this for a super lightweight AR10 RECCE/scout project, so the 6 oz lower goes a long way in shredding weight.

    My one qualm with this lower is that I wasn't made aware that the bolt catch takes AR15 style roll pins, not the AR10 style threaded roll pins; I found this out during my build and had to run to my LGS and pick one up. TNARMSCO answered the phone and provided great customer service though when I called to ask about the pin!

// 80% lower restriction // end script