Populated AR308 Lower Receiver

(9 reviews) Write a Review
0.80 LBS
Current Stock:

Updates and Shipping times will be listed on the bottom of the front page of our website! 



The AR308 Populated lower comes fully assembled and is covered by our Lifetime Warranty.


  • Nylon66/Brass Construction
  • DPMS Pattern
  • Single Stage Tn Arms LPK
  • A2 Grip
  • Takes both Mil-Spec and Commercial Tubes

The takedown pin assembly and the buffer retainer assembly will be in a bag inside the grip for when you decide to finish out your lower.


The Populated AR308 is a finished receiver and MUST be sent to a valid FFL for a background check. Please provide us with the Name and Phone number of the FFL you wish to use for your background check and we will arrange shipment with them.


  • 4
    Populated lower

    Posted by Pat on 26th Jan 2021

    So far I’m really happy with the quality, we will see how it holds up over the years

  • 5

    Posted by Dwayne on 9th Jul 2020

    Great product easy to purchase and customer service was wonderful. Will purchase more products for this company. My 308 build was a breeze with help of Tennessee arms. The rifle shoots flawless.

  • 5
    Good receiver on a budget

    Posted by Ian Smith on 5th Jun 2018

    Fits together really well, it is extremely lightweight and the trigger isn’t bad. Only problem I have with mine is the bolt catch slips occasionally. I would definitely recommend for a first time build.

  • 5
    great with minor flaws

    Posted by Jacob Dohogne on 19th Aug 2017

    Everything works well however it does have some drawbacks.
    1. the trigger is ok and I ended up installing the JP reduced power springs
    2. I used this lower with a brown ells BCG and if I pulled back the charging handle then pressed the button to lick the bolt then let go of the charging handle then the bolt would stop about halfway through the magwell so you couldn't insert a new mag then hit the bolt release. Rather you would have to pull back the charging handle all the way to chamber a round.
    3. The magwell is not easy to grab onto so those who like to grip their rifles by the magwell will not like the sharp plastic at the bottom

    otherwise its great and I would highly recommend it

  • 5
    Lightweight + Rigid + Works Well

    Posted by jrodriguez on 4th Apr 2017

    Light weight, rigid and works well with my build. Fits perfect with Daytona Tactical uppers (DPMS Gen1 pattern) and performs very well. I got the black version and they even put the state required button for me. Thank you TN Arms, the best customer service and response in the industry!

  • 5
    .308 lower is simply amazing

    Posted by Mike on 27th Mar 2017

    What a great lower! It looks amazing and the TAC team was a pleasure to deal with. I ordered mid-December when everyone was out of stock on lowers due to the Cali weapon ban. Even with that I received mine quickly.

    I paired mine with an Aero M5 upper. Its almost a perfect fit but there's a bit of a gap and wiggle. I've seen an Aero M5 upper and lower together that wiggled before as well so I figured it wasn't worth loosing a star. A great product from a great company.

  • 5
    Works great!

    Posted by Alek on 28th Jan 2017

    I ordered this because it is one of the least expensive 308 lowers available. This was for my first 308 AR build so I did not know what to expect and I wanted to keep it inexpensive. I put an Alexandria Pro Fab upper and the lower worked great. I did have a small issue with the trigger which was fixed immediately. Up to date I have put 80 rounds through it with no issues. I will definitely come back for more if I decide to build another AR.

  • 3

    Posted by Unknown on 2nd Nov 2016

    Great item except received item scratched all over , half of the black coating was faded or removed by who ever puts the parts kit on, over all it looks like I was sent a used item, I know it takes a few weeks to receive items but don't rush it out the door I paid for something to be nice and new.
    Due to anonymity, our management team could not reach this customer to discuss these issues as quality control is important to us. If the individual that authored this will contact us, we would like to come to a resolution.


  • 5
    1st ar build

    Posted by Unknown on 10th Oct 2016

    I wanted to build a semiauto 308 and did not want to spend a lot of money but first I needed a lower. The tnarmco lower was perfect especially with all the little pieces installed. I liked the brass reinforcements so the buttstock is secure. The rest of the lower seems first rate, and the trigger pull is perfect so far. My final cost for the build is less tha $750 with an 18 inch upper and a recoil reducing stock with an adjustable cheek riser. Very satisfied.

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