Showing 1–32 of 123 results
Robust. Effective. Efficient. Why screw around with “complicated” when it comes to your AR? This build kit brings you one of the most efficient builds in our catalog. This black rifle kit gets you a solid base for a rifle that you can then use as is, or modify by adding accessories (light, laser, vertical…
Ultra-light with hyper accuracy, this upgraded M4-type AR15 rifle upper is setting a new standard. Tucked under a lightweight free-float M-LOK handguard is a Government-profile M4 barrel forged from mil-spec 4150 Chromoly Vanadium with a 1:8 twist. Throw some 62-grain M193 or 77-grain Match Kings down the muzzle, and you’ll put one hole atop another…
Want an AR-15 trigger that suffers no creep, take-up, or over-travel? Looking for the easiest-to-install LPK? How about the most affordable parts kit possible? This mil-spec AR-15 LPK comes in at a great price with machining and performance that feels match-grade. Polished for Performance Inside this kit, you’ll find a disconnector, hammer hook, and sear…
Our Premium Billet 80% Lower has been redesigned with easier assembly in mind. This receiver has been enhanced with a threaded bolt catch release hole. No more roll pins! This enhancement allows for a quicker, simpler install of your lower parts kit with fewer tools required. 100% mil-spec fitment ensures this lower works with all…
Blemished Billet Premium 80% Lower This receiver is blemished. Surface marks will vary. The lower receiver is fully functional once fabricated, just like any unblemished 80% lower. NOTE: BLEMISHED LOWERS ARE FINAL SALES AND NON-REFUNDABLE. Blemish Billet 80% lower Specifications: For AR-15 builds (5.56/.223/300 BLK/6.5 Grendel) Type III Hard Anodized Billet Color: Anodized Black 100% Mil-Spec Quantity:…
Blemished .308 80% Lower: Small scuffs, 100% performance. Save a couple bucks on your 80% AR-10 build! These blemished .308 receiver blanks feature small surface blemishes, which may include slight scratches or scuffs — but they’re perfectly functional and just as reliable as any other receiver. Combine with an LR-308 / AR-10 rifle kit to…
Blemished AR9 80% Lower Receiver: This receiver is blemished. Marks will vary. The lower receiver is fully functional once fabricated, just like any unblemished 80% lower. This is a NON-REFUNDABLE product. Blemished AR-9 80% Lower Specifications Compatibility: 9mm Parabellum Construction: Billet 6061-T6 Aluminum Finish: Type III Hardcoat Anodizing Color: Matte Black Fitment: 100% Mil-Spec Fire/Safe Engraving: Yes Features: Integrated trigger guard,…
Build all three ARs with one 80% lower combo kit. Originally chambered in 5.56 NATO and .223 Remington, the AR has evolved to chamber different calibers, with upper and lower receivers redesigned to include the .308 AR-10, and the 9mm AR9. It can be hard to choose a favorite. So, don’t settle — just grab…
Our updated billet AR-15 billet 80% lower with a quality lower build kit. Grab a quality, mil-spec lower assembly kit built to pair with your new 80% lower and save! This kit contains all components required to assemble the lower half of your custom AR-15 build in one kit. Just finish the lower, put it…
No AR-15 build is complete without a butt stock assembly – and this one comes with all you need: Black FIRE/SAFE engraved 80% lower, lower parts kit, butt stock, buffer tube assembly. One (1) Black FIRE/SAFE 80% Lower Receiver: FIRE/SAFE Engraved Color: Anodized Mil-Spec Black Quantity:1 Forged 7075-T6 Aluminum Broached Magwell 100% Made in the USA Sold…
Some of us like our AR platform rifles traditional or built as close to mil-spec as possible. We build replicas of that Colt model 629 or of the old-school M-16, because we want that nostalgia when we shoot. There’s just one problem: the mil-spec triggers of these rifles of a bygone era were gritty and…
When you work on either your AR or the smaller parts of your 1911 or a similar handgun, you could find yourself needing an extra pair of hands to hold something in just the right way so you can hammer a pin. You don’t just want to clamp your barrel, slide, or whatever else into…
Maximize the performance of .308 with this match-grade, stainless, fluted, heavy-barreled upper. Paired with a free-float M-LOK handguard and low-profile gas system, this .308 upper maximizes accuracy and provides plenty of rail estate for your favorite accessories and attachments. The inner workings are handled by a quality, mil-spec CMMG lower parts kit with a crisp,…
Sig Sauer’s produced some of the most reliable, accurate handguns in the world. They’ve managed to push the envelope further by developing one of the most lightweight, compact and capable micro red dots, ever: The Romeo1 PRO Reflex Sight. To achieve its incredible size and weight, the Romeo1 PRO uses an aspheric lens: An ultra-thin,…
Side-Charging .223 Wylde AR-15 Rifle Kit with 16″ Parkerized Barrel and 15″ M-LOK Handguard Most AR-15s could use a little help in two areas: accuracy and handling. This kit tackles both. The 16″ barrel is a .223 Wylde, so it feeds .223 Remington and 5.56 NATO equally well while keeping groups tight, and the side-charging…
Side-Charging .223 Wylde Upper Assembly with 16″ Parkerized Barrel and 15″ M-LOK Handguard Want a ready-to-run side-charging AR-15 upper without sourcing and assembling every part yourself? This one arrives fully built. At its core is a 16″ M4-profile barrel in 4150 chrome moly vanadium steel with a 1:7 twist and a .223 Wylde chamber. The…
Got your mind set on building your own AR10 Rifle? Then check out this lower assembly that features a .308 80% lower crafted from 7075-T6 aluminum billet and anodized black. It also includes a lower parts kit that has been laser cut and polished for a smooth trigger pull as well as a 6-position buffer…
Got your mind set on building your own AR10 Rifle? Then check out this lower build kit that features a .308 80% lower crafted from 7075-T6 aluminum billet and anodized black. It also includes a lower parts kit that has been laser cut and polished for a smooth trigger pull. Billet .308 80% Lower Receiver:…
Give Your AR the 1911 Treatment. These are real, bona fide 1911 grips, complete with standard grip panel threaded inserts, made specifically for the AR platform! Anodized and available in Black, Gray, or OD Green, these grips are incredibly strong and lightweight, while improving ergonomics by offering a more vertical grip angle. Note: Grip panels…
Engineered for precision and power, this 7.62×39 AR-15 upper combines a heavy barrel with the 7.62×39 cartridge, offering superior performance long missing from other rifles. Built around a 16″, 1:10-twist, heavy barrel housed within a custom free-float M-LOK handguard, this upper offers tighter shot groups and improved heat resistance during rapid fire. This upper features…
Tungsten Cerakote 7.62×39 AR-15 Upper with 16″ Heavy Barrel and 15″ Talon M-LOK Handguard Want to shoot 7.62×39 without switching platforms? This upper puts the classic AK cartridge on your AR-15 lower, and its 16″ heavy-profile barrel stands up to long strings of fire while keeping your groups consistent. The handguard and forged upper receiver…
Putting the AK’s best attribute into an FDE Cerakote AR-15 kit. That best attributes is, of course, the AK’s 7.62×39 cartridge. This AR-15 rifle kit provides Kalashnikov power, but with the affordability, reliability, and modularity you’ve come to love from Eugene Stoner’s greatest creation. Oh, and much better accuracy (sorry, AK owners). Up top is…
Putting the AK’s best attribute into a Cerakote Tungsten Gray AR-15 kit. That best attributes is, of course, the AK’s 7.62×39 cartridge. This AR-15 rifle kit provides Kalashnikov power, but with the affordability, reliability, and modularity you’ve come to love from Eugene Stoner’s greatest creation. Oh, and much better accuracy (sorry, AK owners). Up top…
Start your next AR build by killing two birds with one stone. Get your 80% lower and your lower parts kit all in the same place in one fell swoop. This bundle includes both. You get a 7075 T6 forged aluminum 80% lower and a mil-spec lower parts kit that’s had its interacting surfaces polished…
No LR-308 80% lower receiver build is complete without a buffer kit. In combination with a lower parts kit (sold separately), this kit includes all components necessary to finish assembling your .308 lower receiver. What’s Included Buffer Tube .308 Buffer Recoil Spring Castle Nut Latch Plate Adjustable Stock Mil-Spec / Standard Buffer Fitment This buffer…
Love the original A2 flash hider? Wish it was even better? Need a lil’ extra length? That’s where Aero Precision’s Delta 556 Muzzle Brake comes in. Drawing from the original M16 flash hider’s design, this extended muzzle brake further reduces muzzle rise and muzzle flash, keeping your point of aim unobstructed and allowing for quicker,…
Improve your GLOCK’s® (or P80’s) accuracy, instantly. The Agency Arms 417 Compensator, made for GLOCK® and P80 builds, is the cheat code to better accuracy with literally zero effort. With a compact, lightweight, single-port design, the 417 Compensator reduces muzzle movement and recoil, allowing you to form tighter shot groups with quicker follow-up rounds on…
Ready for a red dot or suppressor. Classic Ameriglo quality. The GL-329 ( XL / “Tall”) 3-dot sights provide excellent target aqcuisition in any conditions. That’s thanks to their stacked, Tritium-illuminated front and rear posts. With a front blade height of 0.315″ (8mm) and a rear blade of 0.394″ (10mm), the GL-329s are ready for…
A standard, A2-style flash hider for your AR 10 / LR-308 rifle. Features standard 5/8×24 TPI threads for universal compatibility with .30-caliber, AR-type barrels. Made from solid 4150 steel with a matte Parkerized finish. Features classic “A2”-style, five-slot pattern with solid bottom to reduce muzzle rise and flash.
A no-brace lower build kit for your custom AR-15 pistol. This lower build kit is the perfect affordable choice for completing your AR-15 pistol build. It includes a mil-spec LPK and buffer kit with no pistol brace nor buttstock. Add your own brace later, or just run it slick. Classic Lower Parts Kit This Classic…
The original mil-spec AR-15 lower build kit. Includes the O.G. pistol brace, the SBA3 from SB Tactical. This mil-spec lower build kit includes the parts you need to assemble your stripped lower receiver, completing the “lower half” of your custom AR-15 pistol build. Classic Lower Parts Kit This Classic LPK features a mil-spec hammer and…
Our new and improved billet AR-9 80% lower, with a quality lower parts kit! Grab our new and improved AR-9 80% lower with a mil-spec lower parts kit thrown in, and save on this bundle! Featuring an updated design with better aesthetics, a new magazine catch and ejector fasteners, our second generation AR-9 80% lower…
This page always shows what’s on sale today: 80% lowers, AR-15 uppers and parts, build kits, handgun parts, sights, scopes and accessories. Sale items change often, so check back.
Our forged 80% lower is built to exact mil-spec measurements, so it works with standard AR-15 parts. See all 80% lowers.
Looking for a complete build kit without spending an arm and a leg? Sale AR build kits and handgun build kits show up here as soon as they’re marked down.
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.
