TNW Firearms Aero Survival Rifle Build Kit With an 80% Receiver

TNW Firearms has introduced a build kit version of their Aero Survival Rifle. It comes as a parts kit which you need to assemble yourself. The receiver of this kit is 80% finished, which doesn’t qualify it as a firearm according to the US legislation.

The kit includes drawings and instructions explaining the process needed to completely machine the receiver. Important to note that the ASR kit does not include the stock, pistol grip and buffer tube. All the mentioned parts are AR-15 compatible. You can either buy them separately from TNW Firearms or install the corresponding AR-15 parts of your choice.

The lower and upper receivers, as well as the barrel nut of the kit, are unfinished. The drawback of the absence of a finish is that you’ll have to apply one unless you want to leave it unfinished. However, the good thing is that you can apply whatever custom finish you want.

The TNW Firearms ASR HomeĀ Builders Kit comes chambered in one of the following calibers: .22LR, 9x19mm, .357 SIG, .40 S&W, 10mm Auto and .45 ACP. Barrel lengths are 16.25″ for all the calibers with 1:10 twist rate for the 9mm and .357 SIG, and 1:16″ for the rest of the calibers. The .22LR version takes Remington Model 597 magazines and the rest of the versions are fed by Glock magazines. Regardless of the caliber choice, the kit costs $375.





Hrachya H

Being a lifelong firearms enthusiast, Hrachya always enjoys studying design, technology and history of guns and ammunition. His knowledge of Russian allows him to translate and make Russian/Soviet/Combloc small arms related information available for the English speaking audience.
Should you need to contact him, feel free to shoot him a message at TFBHrachyaH@gmail.com


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  • William Elliott

    Well now…I was considering a 10mm carbine to go with my G20…might just have to look into this
    since the price is reasonable.

    • Shankbone

      I was getting ready to type my typical PCC response (“Call me when it comes in 10mm and takes Glock mags.”) when I saw that the kit is from TNW. Praise the lawd.

      • William Elliott

        I know, right? And I just tweaked all my G20 mag extensions so they actually work! [Actually, it was a minor mod to the follower and the G20 mag body, not the extensions].

  • Michael Boudreaux

    I think a major issue with kits like these being unfinished is that most people don’t understand how important it is to type III hard coat anodize aluminum products like these. It makes a big difference over the life of the product especially in pinholes. Now if you don’t plan on shooting very often maybe you could get away with it, I’d still want it done though.

    • William Elliott

      Have to ask my buddy with the shop if he does hard coat anodizing

      • Michael Boudreaux

        If not you can find videos on how to do it yourself as well. From what I’ve seen, its not that difficult of a process.

        • pistol pete

          I don’t know, I did my first 80% (7075 t6) a few years ago, between me and my son we’ve put north of 5k m-193 through that reciever so far and she shows little to no wear for it. Pin holes are just as tight as when I first drilled em.

          • William Elliott

            huh….well that’s a thing. I wonder if a good ceracoat would be better…

          • Michael Boudreaux

            cerakote is a surface finish, anodizing impregnates the metal. It actually changes the hardness, cerakote just coats it.

    • Christian Hedegaard-Schou

      More importantly, even if you find a place that will do it for you, legally they have to have an FFL. (unless they will let you accompany the receiver throughout the entire process, but good luck with that).

      And while there is no law or regulation requiring the serializing of home built receivers/firearms, any FFL who’s going to receive a firearm receiver for finishing is going to demand a serial/markings in order to enter into their bound book.

      And yes, they can legally just take the makers name/address and enter “NSN” in their bound book, who’s going to want to do that? FFL’s aren’t going to be convinced (maybe), and the builders now have their receiver on an official record book, which is usually the entire point behind 80’s for most people.

      • Eric S

        As I understand it, if the gun is in your possession less than 24hrs it doesn’t need to be logged. But good luck finding a smith without a 6 week backlog.

      • SGT Fish

        lots of dealers will log the gun in their book with serial number marked as N/A. many older guns never had SNs and don’t need them. Its more common than you think. If the dealer is that unaware of how to do it, may want to find another

        • Christian Hedegaard-Schou

          DEALERS deal with guns without serial numbers on a far more regular basis than an anodizer/metal finisher who happens to have an 07 FFL, and likely only deals with brand new firearms on a daily basis which are generally required by law to have serial numbers.

          Remember, we’re talking about metal finishing shops with FFL’s, not typical dealers.

    • Indianasteve

      Anodizing is fairly easy and inexpensive to do yourself.

    • jerry young

      There are other options, I’ve used Dura Cote and Cerakote with great success and you can get them in various colors for those who like that, CeraKote is better and a little harder to apply but holds up better but neither is above the average persons ability, many guns come from the manufacturers with these types of finishes today rather than blued or hard anodized and if you like bluing you can do a cold blue finish at home, I refinished a muzzle loader with it back in 1990 and it’s still in good condition after hunting with it for years.

      • Michael Boudreaux

        If it comes from a reputable manufacturer, it will be anodized first then cerakoted. they don’t just cerakote it. As I said in another comment down below, anodizing changes the hardness of the metal, it isn’t just a surface coating like cerakote.

  • Jay

    These things have horrible trigger pulls.

    • William Elliott

      I wonder why…should just be a stock AR trigger

      • Jay

        Look at the pics above in the article. Nothing “stock AR” about that trigger. It would have been better if it was.

        • William Elliott

          huh, you’re right. I was going by the pin holes in the receiver. Still, love to get one and see if it can’t be upgraded with a better trigger. At that price, its worth it.

          • Jay

            No upgrades available that I know of. If you are good at stoning hardened surfaces maybe you can improve it. It is probably 12-15lbs from the factory.

  • Brett baker

    An 80% kit cheaper than the gun from the factory? Truly, we are at the end of days!

    • Cal S.

      Right?!

    • PistolPete037

      Not just cheaper, but less than half the price.

  • Stan Darsh

    What is with the 80% upper? The price is nice, but the need to mill out the ejection ports and thread the front and back of the upper (especially without any jigs) makes it a pain.

  • jerry young

    Not too bad considering I paid $485 for an AR 15 80% build kit than came with everything except sights and a magazine