Showing 65–80 of 80 results
Magpul® has built quite a name for themselves over the years with their aftermarket AR platform furniture and add-ons. Take their MOE® grip for your AR. It feels great, the grip angle is miles ahead of the standard A2 grip your AR probably came with. Also, its polymer construction makes it a simple yet amazing…
The Magpul MOE+ Grip has a reinforced rubber mold wrapping around the polymer body, allowing for maximum comfort and weapon control. The durable material prevents snags and damage, permitting peak performance in rugged environments. The MOE+ Grip includes a grip cap and additional storage for gear. Additional Features: Beavertail Backstrap Grip Angle: 25 degrees Height:…
Magpul® MS1® Two-Point Sling with Upgraded QDM Quick-Detach Swivels The MS1 has earned its spot as a go-to two-point sling: it adjusts fast, rides comfortably and doesn’t snag on gear. This version comes with Magpul’s QDM swivels, so it clips straight into the QD sockets on your stock, brace, end plate or handguard. What makes…
Magpul GEN 2 MOE PMAG with Window: Check Your Round Count at a Glance The PMAG is already one of the most trusted AR-15 magazines around, and the GEN 2 MOE Window adds the one feature shooters kept asking for: an easy way to see how many rounds are left. Impact-resistant polycarbonate windows are built…
Lightweight 30-Round Polymer AR-15 Magazine in 5.56 NATO / .223 Rem The PMAG 30 GEN M2 MOE is the kind of upgrade that earns its spot in every AR-15 owner’s range bag: a proven magazine at a price that makes it easy to stock up. Its polymer body is light enough that you won’t notice…
Want to completely eliminate muzzle rize? Reduce felt recoil by 67%? Add a badass-lookin’ muzzle device on your AR-15 in the process? You can check all three boxes and keep some cash in your wallet with Rise Armament’s affordable RA-701 Compensator. This multi-ported and vented compensator channels gas up and backwards, keeping your barrel on-target…
Durable, lightweight, classic H&K-type iron sight. The Samson Fixed Front Sight is arguably an improvement when compared to the USGI front post. And yet, the A2-type front sights off most M16s and M4s can’t be beat. So, why not pair them up? That’s exactly what the Samson Fixed Front Sight with an M16A2 turret and…
Your best companion for that big Whitetail downrange. The Sightmark Core VHR Venison is custom-made for the deer hunter, providing an array of magnification (3x to 9x) and an ample field of view at any magnification. The Core VHR Venison even comes with zero stops, allowing you to make adjustments and return to zero after…
The UTG® ACCU-SYNC® AR15 Flip-up Front Sight is manufactured from machined aircraft aluminum with a matte black finish. The posi-lock push button pops the spring-loaded front sight into position and prevents the sight from collapsing when deployed. No extra tools are needed, because once installed, there’s nothing more to adjust. For mounting, all you do…
Installing a dust cover onto your AR’s upper receiver can be a pain. If you’re starting with just parts, you need to install the C-clamp onto the rod without launching it across the room and never seeing it again. Then you thread the rod through the first side of the cover, then the spring, then…
Mil-spec, 4.6 ounces, fits all standard buffer tubes. This H2 buffer provides a reduction in bolt carrier group travel and increases recoil damping, making it ideal for over-gassed AR-15s, suppressed setups, and super safeties and forced reset selectors. H2 Buffer Features & Specs Weight: 4.6 oz. Size: Carbine All-steel construction Fits all mil-spec buffer tubes…
The affordable way to finish your AR-9 pistol build. Need all the lower parts for your AR-9 receiver? Grab this lower build kit! It includes the necessary 9mm buffer, a tube, recoil spring, and LPK for assembling your 9mm AR lower receiver. Lower Parts Kit This LPK features a mil-spec hammer and trigger, with standard…
The affordable way to finish your AR-9 pistol build. Now with a brace! Need all the lower parts for your AR-9 receiver? Grab this lower build kit! It includes the necessary 9mm buffer, a tube, recoil spring, and LPK for assembling your 9mm AR lower receiver. It also includes the original AR-type pistol brace, the…
If you’re in need of a new AR9 buffer tube assembly kit, then we’ve got you covered. The buffer tube is crafted from 7075-T6 aluminum which makes it very light and durable as hell. It’s even compatible with most adjustable 6-position stocks so that you can customize the length of your rifle to your need….
Windowed 25-Round Magpul PMAG GEN M3 Magazine for AR-10 and LR-308 Rifles If you shoot an AR-10 or LR-308-pattern rifle, a PMAG GEN M3 is a dependable way to keep it fed. This 25-round magazine brings Magpul’s well-known polymer construction to .308 Winchester and 7.62×51 NATO, with a MagLevel window on each side of the…
Quality AR parts kits, triggers, receivers, handguards, BCGs, and AR-15 accessories.
Welcome to the parts counter. Ready to build a truly custom AR-15 from scratch? It’s all here: Upper parts, lower parts, rail attachments, grips, handguards — you name it, we’ve got it.
Need help picking parts? Start with our Builder’s Master Guide.
AR Lower Parts: What’s in a Receiver?
We’ve sourced quality, mil-spec lower receiver internals and components so you can complete your AR-15 build with confidence backed by guaranteed compatibility. The AR lower parts assembly includes the following:
Stripped lower receiver, or fabricated 80% Lower
Lower parts kit
Buffer tube
Buffer and recoil spring
Pistol grip
Castle nut
Latch plate
Grips, castle nuts, and latch plates are typically included in the lower parts kit. An upgraded latch plate (like this Magpul ASAP QD plate) includes a QD sling stud mount for easy carrying. An upgraded drop-in or “cassette” trigger (like this JMT Single Stage) provides a better trigger pull with less weight and faster, smoother resets for improved accuracy.
Ready to assemble? Here’s how to install your lower parts kit.
Not sure what parts you need? Check out our full lower assemblies!
AR Upper Parts: Everything You Need
Your finished AR upper is the “business end” of your rifle or pistol: It’s responsible for chambering and firing live rounds. So, you’re going to want the highest-quality parts for reliability and accuracy. That means investing in a 4150 CMV barrel, an M16-type bolt carrier group, and a forged M4-type upper receiver. We’ve got all those components available at great prices.
Want to make it even easier? We’ve got tons of barreled upper assemblies, pre-built with a bolt included, ready for install. Options are available for .308, 6.5 Creedmoor, .223 Wylde, 300 Blackout, and 9mm, and of course, 5.56 NATO.
Here’s how to install the AR-15’s barrel, gas system, and handguard.
Grab Your Gunsmithing Tools, Too!
Ever try to install an LPK without punches? You probably wound up losing some of those tiny roll pins, halting your build. Get rid of the frustration and guesswork and grab the tools you need to confidently attack your 80% project. We’ve got quality Armorer’s Wrenches, torque wrenches, roll pin kits, vise blocks, and all the other gunsmithing tools you need to go from a hunk or aluminum or polymer to a locked n’ loaded shooter. Grab a complete Armorers Kit like the Wheeler set, and you’ll have virtually all the tools required.
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DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-Lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.
