Rifle Kits & Firearm Kits

Thunder Guns proudly supplies the best firearm kits and rifle kits in America! When you purchase a firearm kit from us, rest assured that you are purchasing the best quality firearm kit on the market. Browse our catalog for a vast selection of build-it-yourself kits so you can complete your firearm to your specifications. The process is simple and you can start it right away by visiting our various kit categories on our site.

We proudly stand as your resident firearm kit supplier. Poorly manufactured kits tend to wear out faster, and in fact, your firearm can become unsafe for you to handle. That’s why we take our role so seriously here at Thunder Guns.

Thunder Guns has a thorough testing process for each and every rifle kit, pistol kit, and 308 AR parts kit in our collection. Each and every kit we offer in our collection has passed our extensive testing process. At Thunder Guns our goal is to be 100% sure our customers have access to the highest quality rifle kits available.

The Best Rifles are Made Here: Quality, Endurance, Reliability

We are so proud to offer you the best collection of rifle kits on the market. We are uncompromising in our standards for quality, endurance, and reliability. Though we are quite particular with what we accept into our offerings, we have a very large stock available for you to choose from. We pride ourselves on the huge variety of options we have to share with you. Rest assured that you will find just the configuration you are looking for to complete your firearm.

Check out the details of our firearm kit contents below:

AR-15 Pistol Kits

Browse through our selection of AR pistol kits. Each of our AR-15 gun parts is available in multiple configurations, so you can easily find just the right kit for your firearm. Building an AR-15 Pistol is, indeed, an amazing experience, but can also be a hassle if you don’t get the correct information on how to build one. We’ll help you in ensuring that you get all the components you need to build your pistol properly. Our technicians are ready to guide you on the path to building your firearm to your exact specifications. Get a AR 15 kit from us today and you’re on your way to building your dream firearm.

From home defense pistols to hunting firearms, we are happy to help you get just the gun and parts you need to fit your specifications.

300 Blackout Pistol Kits

We offer you .300 blackout pistol kits that include the 7.5 or 10.5″ phosphate barrel, the 7″ or 10″ quad rail, or the 10″ keymod rail. These kits are all you need to assemble a fantastic and hard-hitting .300 Blackout Pistol. These kits will help you complete your firearm with ease. Whether you are a beginner or a skilled shooter, we are here to help you with whatever you may need. We usually encourage our clients to learn the art of building rather than buying a piece that has already been designed and ready for use. We think it is more fun that way. Plus, when building your own pistol, you develop a deeper understanding of your amazing firearm from the inside out. Get a 300 Blackout Pistol kit from us today and start the building process.

223/5.56 Rifle Kits

Thunder Guns offers .223/5.56 rifle kits that include various size/type barrels. Our kits include keymod rail handguards, FDE keymod 80% lowers, black Magpul moe stocks, black Magpul moe grips, enhanced trigger guards, and 80% lowers. If you want a home defense rifle, then browse our store today and place an order. The components you use to build your rifle will determine how you’ll use it for life. If you’re going to buy a rifle, buy the best! You’re in the right place. We are proud to offer you the best rifle kits and parts, right here, at Thunder Guns. We are happy to help you search for the right accessory for your firearm. Feel free to browse through our selection of .223/5.56 rifle kits. If you need help with any of your choices don’t hesitate to reach out to us. We are here to help.

Buy Any Accessory from Thunder Guns to Complete Your Firearm

Sometimes you may want a few other accessories to swap out parts or add to what you already have. Thunder Guns stocks the widest selection of parts, kits, and gun accessories to fit almost any firearm on the market. If you are an experienced gun owner, you’re likely well aware of what you need to complete your firearm. Just be sure to remember the importance of a reliable supplier. All the accessories we offer for sale are from top brands including Magpul. With these accessories, you’ll stay safe knowing you built your weapon using the best accessories possible.

For the best rifle kits, pistol grips, muzzle devices, and rail systems get in touch with us anytime. We highly recommend these and several other vital parts and accessories. It’s not only better but also safe to ensure that you get these things from Thunder Guns, your trusted supplier. These rifle kits have all of the parts you need to complete your firearm. These can come with or without an 80 percent machined stripped lower receiver. Remember these kits are completely customizable per order. Each of our upper assemblies and rifles is fully head spaced as well as test fired for quality assessing the shooting capability and safety of the unit. Enjoy the satisfaction of knowing that you will receive a well-tested and safe unit. We only use top quality, mil-spec parts. Call or come into Thunder Guns today to snag the best in quality rifle kits.

Ask us anything about our firearm kits, we’re here to help

Before you buy any firearm kit or accessory, it’s always great to seek advice and learn a few things. We are ready to help you, so you get the best kit and build the best pistol or rifle. As a company that’s dedicated to providing you with quality firearm products, we stay very well-versed on current trends in the firearms industry. With over 10 years of experience in this industry, it’s no wonder that we find it easy to help our customers with exactly what they need to complete their firearm. You can trust us to offer you valuable information regarding firearm kits and other accessories. We are happy to answer any questions you may have to help you find just what you are looking for.

Count on Thunder Gun for all of you firearm needs. You can visit our facility in Daytona Beach or simply call/email us anytime. We are looking forward to helping and offering you the best firearm kits in the marketplace today.



  • Jason simmons
    Posted November 7, 2018 3:22 pm

    Do your rifle kits use 100% USA made parts …

    Thank You

  • dustin turner
    Posted November 12, 2018 1:46 am

    Do you have any type of warranty on the barrels? I cannot get my 223 to group tighter than 4 inches at 100 yards. I have tried 55,62 and 75 grain hornady black ammunition. It’s very disheartening

  • Dave
    Posted November 13, 2018 1:43 pm

    These are almost all chinese parts and Bear Creek Barrels….Good luck

  • Eric Jones
    Posted March 6, 2019 6:35 pm

    I have dealt with these people for a number of years. I’ll tell you one thing. These people are Great! The product is as good as any other out there costing twice the price. I don’t get paid for this but I have recommended TG to all my friends and family for their needs and I haven’t had a bad word yet. As soon as I can I’m coming up to the shop to get a nickel tour I hope. Thank you TG for having great things at great prices! E.J.

  • Bill
    Posted March 9, 2019 3:42 pm

    TO Dustin Turner, I believe there are a few things at play, 1) it is a new rig and there are likely rifling burrs (like most all barrels) and a break in scheme is at play, There are lots of opinions, the best explanation is, each round through either tears off or leaves copper lodged. I followed a Sig plan, 1 round/ clean x 5, then 5 x 5 then 10/ clean. the cleaning is supposed to remove the copper to expose the burr to a fresh hit/ remove it.

    Look up Optimal barrel time, it has a huge effect,

  • Wende
    Posted July 25, 2019 3:08 pm

    I cannot figure out anywhere what’s wrong with my t19 I put it together following an instructions video and everything looks right the trigger works without the slide but as soon as I put it on the trigger gets stuck and will not move. PLEASE HELP !

  • scotty Johnson
    Posted August 5, 2019 10:56 am

    I have only ever had one issue with anything I ordered from Thunder. they corrected the issue at no cost to me and got me back up and running. this is one of the best companies I have ever dealt with.

  • Ashley Brown
    Posted August 17, 2019 3:37 am

    I’m looking at the black 9mm 16″ rifle. I want this rifle with out the hand guard and the flash hider. Is it possible to get it? If possible what would the price be? Also does the 9mm lower have set screws for some of the pins and springs?

    Thanks for all the help!!!
    Ashley Brown

  • mikethebike2013
    Posted September 1, 2019 3:37 pm

    is their any videos on assiembly of ar10 308 lowers on how to put trigger & safety pin and hammer assiembly in install in correct order ?

  • danmock198666
    Posted September 3, 2019 11:06 pm


  • Bradley Caldwell
    Posted September 14, 2019 1:27 pm

    I got a kit and it came with the barrel sticking out of the packaging and the box itself

  • Dustin
    Posted September 18, 2019 7:59 pm

    I am trying to order the bronze slide with Rome cut polymer80 kit. It says available in back order in black on the bottom of check out. What does this mean? Thanks

  • Richard Caulfield
    Posted September 28, 2019 4:44 pm

    I bought your “135217 9MM 80ჯower Receiver- Black”. There is a very small set screw in the package. What is this this for and where does it install?

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