The beauty of the 80 lower, and the reason theyâre so popular, is that they can be customized and personalized for all types of weapons. OK, so youâre proficient with your AR, you know your weapon inside and out, maybe youâve even built a couple of kits. There are some videos on youtube covering the process from start to finish. All these types have something to offer. It works with a mil-spec AR-15 lower parts kit and trigger. For their light weight, they're proven to work just as well handling 5.56 NATO, .223 and even .308 cartridges. Types of 80% Lowers (AR Platform) 1. Many lowers bear different kinds of finishes such as cerakote and duracoat. Some machining will need to be done to complete the 80 percent lower into a functional firearms receiver. Anderson Manufacturing 80% Lower. Cast, Can be converted to 9mm, .22 LR with aftermarket parts, Works with all standard retail AR-15 parts and uppers, Made of 7075-T6 forged aluminum (mil-spec), Threaded fittings with integrated trigger guard, An affordable alternative to the AR-10, SR-25, works with factory, aftermarket Glock magazines, Made of composite, solid-core nylon polymer, Includes bits and jig required for completion, Easiest AR-type 80% receiver to cut and drill, Most affordable lower and jig combo overall, 1911 Commander chambered in .45 ACP & 9mm, 1911 Government chambered in .45 ACP & 9mm, No 1911 Officer 80% frame is currently available, Completed frame is compatible with retail 1911 parts, Made of 6061-T6 billet aluminum (weighs 50% less than steel frames), Can be completed with a hand drill (frame cutter supplied with jig), Easiest 80% pistol frame to cut and drill by hand, Most affordable pistol frame and jig combo. Introduced by Polymer80, these The 80% lower, commonly referred to as an 80 lower or simply a âreceiver,â requires special tooling, called a jig kit to complete. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, New Jersey, New York, Rhode Island, and Washington). The 6 Best AR-15 80% Lower Receivers. Because of this, the 80% jig required to complete the lower is included, as is the tooling. This provides a huge advantage: You can piece together a quality gun with custom pieces without the high price tag and extra fees from premium brands. 99. This creates a receiver that's dense and uniform in molecularity, lending its high strength-to-weight ratio. If you have questions about parts compatibility, calibers and configurations, or anything related to the build or assembly of your new rifle or pistol, get in touch. The other 20% will need to be finished, by the gun owner, to be a working firearm. Posted by 80 Lower Jig, Co. on Jun 4th 2020. Like the AR-15, the P320's other components, to include the frame (officially called a grip module), slide, barrel, and other components are not considered firearms. Once finished, the frame's compatible with regular 1911 parts from any manufacturer. Starting with the original unit, the forged 80% lower receiver was designed years ago for the AR-15 platform. 80% 1911. This improves the overall ruggedness of the receiver, and it looks good to boot. The nylon polymer is melted, forced into a receiver mold and allowed to cool. Start here: What's an 80% Lower? We are a national retailer of individual components and not all products depicted on this website are legal in every state. The bigger AR-10 from ArmaLite (or the modern SR-25 from Knight's Armament) is what comes to mind for most, but these military-issued rifle platforms cost thousands of dollars. Forged AR-15 Lower, Anodized or Raw. Stealth Arms is one of the first companies to introduce When you decide on your 80 lower, youâre deciding on the brains of your rifle, accuracy, durability, and longevity of your rifle depends on the 80 lower. Cutting the slide rail area can be done with snipped or hand files, and drilling the required pin holes for the internals is done with a hand drill. This updated guide compiles the latest and greatest available 80% receivers and 80% frames available today. But they're 100% compatible with GLOCK components, and when finished and assembled, they look and function all the same. I used carbide bits and had no issues. 80% polymer receivers are suited for people who do not want the hassle of applying for an FFL license. American Made Tactical sells two types of 80% lower receivers, billet and forged. We are a national retailer of individual components and not all products depicted on this website are legal in every state. AR10 Lower Parts Kit. Be the first to receive deals, promo codes, and early product releases and news. Stripped AR-15 Lower Receivers vs 80% Lowers vs Complete Lower Receivers. An 80% lower is a partially-finished block of aluminum. Unlike the original steel design, these frames are made from aluminum to make machining easier. The best way to finish is with a drill press, but as long as you have a way to stabilize a drill, we have had customers come up with a variety of ingenious ways to mill out their lowers with homemade inventions. You will find arguments for both types of lowers, but below are a couple of differences that could sway you either way. In addition, the 80 lower can be purchased in either the âRawâ form, meaning it has not been painted at all, so it can be completely customized for your AR build. 7075-T6 is harder and stronger than 6061-T6, but to a degree that is largely unnecessary. The buyer is then required to drill and mill the lower to make it functional for use as part of a pistol or rifle. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. AR10 80 Lower. As for the cost of the project, You can buy a very good quality 100% lower for close to the same cost of an unfinished 80% one. SMGs, popular handguns like the Glock, and now rifle receivers are being built from this material. Specifically, which routers are best for finishing an 80% AR-15 or AR-308 lower receiver with our Universal Router Jigs. They can be 6061 or 7075 aluminum or polymer. Forged 80% lower receivers are also made out of 7075 T6 aircraft-grade aluminum and it is generally agreed in the industry that a forged piece of aluminum is stronger than billet, though with the high-quality grade of aluminum used, it is still a hotly debated topic. We recommend you next learn about the important "other half" of this project before getting started The stripped lower receiver is a piece of aluminum forged or billet into the final shape. A lower parts kit will not even fit in an 80% Lower until it has been machined into a complete firearm. Forged vs. Polymer vs. ALL STATE LAWS APPLY. AR-9 80% Lower Receiver. Receiver aluminum black start to finish a lower parts kit 7075 aluminum polymer... To cool 're proven to work just as well handling 5.56 NATO,.223 and even.308.... Paint with a handheld cutting jig, Co. on Jun 4th 2020 your lower ( Bits Sold Separately ) from! Lowers out there, but some shooters want more firepower means you can apply to them buyer is required... Creates a receiver that 's dense and uniform in molecularity, lending its high strength-to-weight.... First, different types of 80% lowers are those numbers in front of the aluminum receiver from factory! 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