We partnered with the industry's top manufacturers to bring an all-new, proprietary AR9 80% lower receiver to market. Pair that Polymer80 AR-15 80% Lower Receiver with Jig and Bits *ADD TO CART FOR $54.99* Polymer80 AR-15 80% Lower Receiver with Jig and Bits Add To Cart For $54.99 FEATURES: Unique reinforced polymer design with solid core design ATF compliant design Beefed up buffer tube ring and ribbing across the entire. Raw Billet AR-15 80% Lower Receiver. In Stock. Start drilling with the 3/8″ Drill Bit at every 1/8″ hole shown above as Blue. The New Frontier Armory Complete 80% Jig Kit is all you need to complete the final machining process to turn your 80% AR-15 Receiver into a working stripped lower receiver. You will need a drill but since most jigs' guide plates use reinforced fittings and self-aligning guide holes, you can usually . No requirement for licensing or any paperwork since this bad boy meets BATF guidelines. AR-15 80% Jig and Bit Kit Combo. Rated 4.80 out of 5. The jig includes plates for the different steps of machining out the lower, as well as a tool kit including drill bits and endmills. This sale includes the 80% anodized Anderson lower AND the Anderson 80% Lower Jig Kit, Gen 2. These extra machining plates will tranform your AR-10 Elite Builder Jig into the an Elite Builder Patriot 80% Lower Jig. Polymer80 has brought an ultralight approach to the AR-15 80% lower! For AR-type lowers, jigs are configured to machine either AR-15 and AR9, or LR-308 receivers. Shop JSD Supply for 80% Lower Receivers, Jigs, and Gun Parts Kits that are used to create functional firearms with no registration or serial numbers required. Fire / Safe Engraving. BIG SALES on 80 lower jigs & FAST SHIPPING ON ALL ORDERS! 5D Tactical Universal AR-15 80% Lower Receiver Router Jig - PRO. Login Register Menu. mill bits. . They have also been used to successfully complete Kevin's new 80% AR15 lower receivers. 1 ea. . Warrhogg .308 Jig. This kit includes: UPPER: Glock 19 Compatible Slide w/ RMR cut. Anderson AR-15 80% Lower Receiver Jig Kit is fully BATF legal. Designed as a replacement set for the Elite Builder Jig, these bits can also be used with any other 80% jig designed for the AR-15/AR-9 and LR-308 lower receivers. No-thread design on pistol grip area. You will need to provide the following drill bits: 3/8", 5/32", 1/8", 7/16". Quick View. The jig is the primary tool required for all lowers and frames. Shipping: $19.99 for the first; $4.99 for each additional. Polymer80 AR-15 80% Lower Receiver with Jig and Bits *ADD TO CART FOR $54.99* Polymer80 AR-15 80% Lower Receiver with Jig and Bits Add To Cart For $54.99 FEATURES: Unique reinforced polymer design with solid core design ATF compliant design Beefed up buffer tube ring and ribbing across the entire. 15 of 15 Items. $94.99 $79.99. then it is a bit of an unnecessary expense. AR-15 80% Lower Receiver Jig Kit. The pistol grip area features a unique no-thread design specific to Polymer80 lowers. After two years of planning, design, engineering, and testing, we're proud to introduce the industry's first reinforced polymer receiver designed for the DPMS styled .308 in an 80% format. You need precise, rugged bits like this Elite Builder 80% Jig Tool Kit. Please note: our 80 Lower Receiver Jig does not come with the High End Tooling Kit required for finishing. Optional high quality tooling package includes all bits required to finish your JT-15 lower. $ 44.99. Requires basic hand tools (drill press or mill, vise) Compatible with all 80% lowers we sell! If you come back to the question of whether or not you can finish an 80 lower without a jig, the answer is no. The 80% lower receiver is . AR-15 jig kit included. Their bits work for different purposes for making holes and cuts. 80 Percent Arms Compatible Upgrade 80% AR-15 and AR . 0.375" HSS Drill. These milling bits for our drill press kit contains the same high-quality tools that we utilized in our own CNC mills at the 80% Arms manufacturing plant. REAL TIME INVENTORY. So far it looks like it has great reviews (and tons of fans in the comments) but is priced a little higher at $289. Includes drill bits and easy-to-follow instructions, no FFL required. The fast, accurate, bombproof 80% Lower Jig from Elite Builder now ships with equally high-quality drill bits and end. No FFL is required to purchase this 80% Lower. This gunsmithing combo kit allows you to confidently cut and drill multiple AR-15 and AR-9 80% lower receivers without losing speed or accuracy. This essential tool is used for the very same purposes at home forges that CNC machines, huge industrial mills serve to make big firearms. Additional information. Cart (0 item) Main Menu . Anderson MFG Gen2 80% Lower Jig kit with DRILL BITS G2-T342-0002. The AR-15/AR-9 Router Jig PRO is guaranteed universal for all billet, forged and polymer AR-15 or AR-9 80% Lowers. Made from 7075-T6 and features a 3/4 inch grip screw. . 1 ea. ATF RULE 2021R-05F EFFECTIVE AUGUST 24. AR-9 Jigs Include Bits Required for Machining. Enjoy FAST SHIPPING and SAVE at 80-lower.com today! Qty per Lower. 80% Lower Jig Kit includes right and left side plates as well as the top plates with all screws and pins. Join Waitlist We will inform you when the product arrives in stock. you can turn an 80 lower receiver into an effective and reliable firearm with a few hours of work. Please note that the rear lug pocket for the upper must be finished in the machining process in order to seat an upper California requires 80% Receivers . Our lower jigs can be reused for completing subsequent 80% lowers. Since, by design, an 80% lower still requires the builder to complete the last 20% of the milling process to make the receiver functional, an 80% jig removes the need for . Insufficient stock → AR-15 80% Lower Receiver Jig Bits. Cutting and drilling into a receiver without a jig is like blindly drilling and cutting into air. Customer Reviews. AR-15 Rifle kits, M-16 parts and accessories. Flat Dark Earth Cerakoted Billet AR-15 80% Lower Receiver. . Close Menu. Now, The Elite Builder Patriot Jig can complete virtually all the AR platforms' 80% lowers! Pretty easy to use, although their directions need to be updated with the product improvements they have made. . The Easy Jig tool kit can be found by clicking here. ATF RULE 2021R-05F EFFECTIVE AUGUST 24th LEARN MORE. You cannot successfully finish an 80 lower without a jig. Also included is digital, downloadable milling instructions on how to finish the lower receiver. The fast, accurate, bombproof 80% Lower Jig from Elite Builder now ships with equally high-quality drill bits and end. 11 votes, 16 comments. . The side plates are fitted with drill bushings to allow you to properly drill the trigger and hammer pin. At around the $50 price point, you get all the cutting and drilling . Custom made with super short 0.75 in flutes for optimal performance. Great value at affordable prices. An 80% lower jig is the only way for an AR-15 builder to complete their 80 percent lower receiver with accurately drilled pin holes, and a properly milled fire control cavity for the trigger, hammer, and other components. This allows you to . We stick to HSS (high-speed steel) bits for the jigs and 80% lowers as well because they're specifically . Specifically designed for their 80% lowers but compatible with any mil-spec lower, the Optimus Defense AR-15 Lower Drill Jig is capable of completing a lower to mil-spec tolerances. For example, it empowers you to drill holes in the precise location needed to assemble the lower receiver of an AR-15, AR-308, AR-10, AR9, or similar carbines and rifles. Nice quality product and just finishing my first lower with the jig. phone: (888) 603-0245. Shop our ample selection of 80 percent lower easy jigs and complete jig systems. Quick View . AR-15 80% Lower Receiver Jig Bits. James Madison Tactical - AR-15 80% Gen2 Lower Receiver. $ 114.98 $ 97.73. Includes required bits and tooling. Completing an 80% lower is a great place to start if you want to DIY build your own firearm from scratch. Made from 7075-T6 and features a 3/4 inch grip screw. These are to accommodate the fire/safety selector switch, the trigger pin, and the hammer pin. If you're using a router or milling machine to cut the fire control group cavity in your receiver, you'll be . Download Instructions on how to use. SKU: AR-80JIG-COMBO Category: Gunsmithing Tools Tags: 80% lower, gunsmith, tools. (Not Router Compatible) Compatible with Mil-Spec AR15 forgings. Elite Builder 80% Lower Jig - AR-15 Patriot Upgrade. This jig can used on both FORGED and BILLET AR-15 80% lower receivers using the new indexing technique which utilizes the buffer tube mount to center the receiver (not the sides). 2. Like the Easy Jig 3, it can do AR-15, AR-9, and AR-10 80% lower receivers. Tabletop Vise. Modulus Arms is proudly known as the best 80 percent lower and 80% lower jig manufacturer on the market. 1 ea. including AR-15, Glocks, and LR-308 weapons. Polymer80 Lower Receiver and Jig Kit (AR-15, FDE) $94.99. $ 185.00 - $ 259.00. Buy 80% Lower Receiver Jig- AR15 and Complete tool kit: GunBroker is the largest seller of AR15 Parts Gun Parts All: 935448421. . We offer Priority mail . Furthermore, they have a full selection of bits any anything else you may need right on their website. As low as $95.00. If you want to invest in a new 5.56 or 223 build kit and. 1/4 inch end mill, 4" overall height. We have purchased from multiple companies in multiple AR platforms to ensure proper fitment and function. I bought the Modulus jig and the tool kit (drill bits and end mill bit). AR-15 Lower Receiver Jig Kit. These are made from 7075 T6 Aluminium and are made with the same processes as a normal lower receiver. Jig KIT is intended for an Open Trigger 80% Lower, comes with drill bits Includes: • Fixture Pla for sale by Bignicer on GunsAmerica - 916134807. Sign in Register. When molded correctly, resin and epoxy AR-15 lower receivers have been shown to hold up to some aggressive use, but the material is brittle and long term use . If you want to complete your receiver blank on a budget (without sacrificing quality) stick with the Universal Polymer 80% AR-15/AR9 Jig. Our alignment tool that ensures the pocket is always centered in combination with our oversized top plates allows for very smooth and consistent finishing. These 80% Lowers are Designed off the AR-15 Platform. ATF compliant design. 11 0 0. Includes a jig and all the drill bits. The 80 percent lower jig kit includes all necessary parts and instructions to complete the machining on your new lowers. Highly customizable and comfortable. THIS KIT DOES NOT COME WITH DRILL BITS OR END MILLS. With this jig, you are now able to build both AR-10 and AR-15 80% lowers. SKU: AT15-80JIG-BITS Category: Gunsmithing Tools Tags: 80% lower, AR-15, gunsmith, jig, tool. STEP 7 - Continuing with the jig assembly standing upright and the Drilling Top Plate removed. However, our complete systems come with the . 80% Lower receiver and Jig Set for AR-15 type rifles. The 80% AM-15 Machined Lower is finished in Type III Hard Coat Anodize, Black in color. E P Armory has made dramatic changes to the design of the Adaptable Jig System exclusively from our machine shop. THIS IS NOT A COMPLETE RECEIVER, 80% Lower JIG AR 15. 11 0 0. The R&B Tactical Tooling 80% Lower Receiver Cutting Tool Kit was created, designed and manufactured by us. Join Waitlist. 5D Tactical Universal Jig. Search; Search. Made from 7075-T6 and features a 3/4 inch grip screw. 80% Lower Jig for AR-10 and AR-15 - Ultimate Jig Description After considering everybody's feedback regarding jigs, we were able to develop our Ultimate Jig. 1/2" HSS Drill. We strive to keep costs low for every "from-scratch" AR build, and the AR9 is no different. The Elite Builder 80% Lower Jig and tool kit combo is the key to cutting and drilling multiple 80% lower receivers for the AR-15 or AR-9 without losing efficiency or accuracy. The UFS 80% lower receiver jig was designed specifically for the UFS 80% lower receiver. Here is a List of Tools That You Must Have: 80% jig with bits; A drill presses; Vise; Cutting fluid/oil; 80% Jig - The Important Tool. Mercury Precision 'Carme' Billet AR-15 80% Aluminum Lower Receiver - Made In The USA . View Latest Price. 80% Lowers is a premier retailer and YOUR source for 80 percent lowers, 80% lower jigs, build kits and more. For Sale from Bignicer | Positive feedback: 100% View | . The Elite Builder Patriot 80% Lower Jig - AR9/AR10/AR15. Our List of the 6 Best AR-15 80% Lower Receivers on the Market. 2756 Aiello Drive San Jose, CA 95111 Mon-Fri 9am-5pm info@BrokenArmory.com Phone: (408) 753-1112 (724) 213-9721 Available M-F 9am-5pm EST . With this jig, you are now able to build both AR-10 and AR-15 80% lowers. The jig allows you to cut and drill your forged, billet oy polymer receiver blank with the provided drill bits and end mill bit (s), transforming it into a stripped AR-15 lower . Jig Description. 80 PERCENT LOWER JIG KIT INCLUDES RIGHT AND LEFT SIDE PLATES, 3 TOP PLATES AND SCREWS. Description. Leading manufacturers and sold by the best customer service in the industry. Includes: Fixture Plate #1; Fixture Plate #2; 1/4" Pin; 1/4"-20 Socket head cap screw 1 3/4" Length Designed as a replacement set for the Elite Builder Jig, these bits can also be used with any other 80% jig designed for the AR-15/AR-9 and LR-308 lower receivers. To finish them precisely, . Polymer80 AR-15 80% Lower Includes Jig Kit With Mill Bit & Tooling*Limit 1 Per Customer*. 240k members in the ar15 community. 80% Lower Jig Kit, Gen 2 For use with drill presses. 1. .308 80% Lower Receiver & Jig Includes a jig and all the drill bits. The Elite Builder became one of the most popular jigs when it comes to fabricating a 5.56 or 9mm 80% lower. - Works with FORGED and BILLET AR-15 80% lower receivers. The 80% AM-15 Machined Lower is finished in Type III Hard Coat Anodize, Black in color. - Type III hard coat anodized. . Corded Drill. $229.98 - $339.97. The Easy Jig® Gen 2 tool kit contains our proprietary end mill and all milling drill bits you need to make completing your 80% lower receiver as effortless as possible using the 80% Arms Easy Jig® Gen 2 system. Specifically selected and packaged to make easy work of your 316 Stainless Steel FCU project. - Buffer tube alignment tool helps center the top plate over the lower receiver. Progress Check - when you remove the Drilling Top Plate, your 80% Lower should look like the image above. REAL TIME INVENTORY. Every piece on the 80% Lower Jig is replaceable on the jig in case there is a mistake made in manufacturing of your 80% AR Lower. Glock Compatible 19 Upper Parts Kit. Note: If you are planning to complete more than 2 lowers, it is recommended that you purchase an end mill bit for every two lowers, and have one extra end mill bit just in case. Add to Cart. BITs-Kits Drill Bits and JIG N' BITs Sets include the correct, American Manufactured, drill bits & more, to complete the sig p-320/365 series 80% MUP inserts. Description. Beefed up buffer tube ring and ribbing across the entire upper surface area. Hardened steel template plates and a self-aligning design make . All of our products ship FAST. This lower has a fixed trigger guard & a threaded bolt catch pin. Description: AR-15 80% Lower Adjustable Universal Jig Kit. Kit Includes: Solid Carbide 5/16 inch end mill - Custom made with a reduced 1/4 inch shank to fit handheld routers. MSRP: MSRP: $219.99. wishlist; Cart . An 80% lower jig is the only way for an AR-15 builder to complete their 80 percent lower receiver with accurately drilled pin holes, and a properly milled fire control cavity for the trigger, hammer, and other components. 10+. The Phoenix, Gen2 version features Polymer80's proprietary polymer composite, a solid core design, stiffened magwell and MILSPEC . You need precise, rugged bits like this Elite Builder 80% Jig Tool Kit. Please leave your valid email address below. The 80% lower jig is the critical other half required to complete your 80% lower receiver. This is an all-inclusive AR-15 80% lower receiver and jig package for one great price! Quicker and easier build process that can complete a lower or frame in under an hour. Keep shopping our rifle parts for the other AR-15 parts you'll need. . Easy-to-follow instructions included! FREE SHIPPING APPLIES TO ENTIRE CART. When it comes to completing an 80% lower, the two most important words are "precision" and "stability". Drill Jig. Because of the importance of the alignment pin, it will be an extremely tight fit in the . a little bit about 80% Lowers . AR-15 Jig Features and Specs: Completes an 80% lower in 30 minutes to an hour. Corded Drill. There are three top plates that are interchangeable to allow you to mill the fire control group. The fact that you don't need any roll pins for this lower is almost reason . 0.156" HSS Drill. 11 0 0. Out of stock. 80-Lower.com Statement Regarding ATF Rule 2021R-05F, "Definition of 'Frame or Receiver' and Identification of Firearms" . End-Mill Bit with Laser Etched Depth Mark . Join Waitlist. The longer dimensions of the .308 lower dictates using a jig with longer plates. Our alignment tool that ensures the pocket is always centered in combination with our oversized top plates allows for very smooth and consistent finishing. We included new template plates so the jig can also cut and drill .308 lowers. Polymer80 AR-15 80% Lower Includes Jig Kit With Mill Bit & Tooling. /r/ar15 is here for your favorite black gun links, build pics, questions and other … See our selection of 80% Stripped Lower Receiver. Quick View. An 80 lower jig provides a template for simplifying the repetitive, mechanical processes that are required when building a rifle out of an 80% lower receiver. Product Details AR-15 80% Lower Receiver Professional Jig Tool Kit Tool Kit Includes: Patented "Chip Breaker" 5/16" Solid Carbide End Mill With ¼" Shank 3/8" Drill Bit For Drilling Out Safety Selector Hole 5/32" Drill Bit For Drilling Out Tigger Slot Pilot Hole And Mass Material Removal In The Trigger Pocket 5/16" Drill Bit For […] Resin/Epoxy AR-15 80% Lower Receivers. These 80% Lowers are Designed off the AR-15 Platform. Polymer80 AR-15 80% Lower Includes Jig Kit With Mill Bit & Tooling. We stick to HSS (high-speed steel) bits for the jigs and 80% lowers as well because they're specifically . Qty per Lower: Warrhogg .308 Jig: J100: 1: End-Mill Bit with Laser Etched Depth . This 9MM receiver blank does not require those finnicky "magazine conversions" like you were once required to use with an AR-15 receiver. my account. . No more hunting around or using the wrong size or risk a dull bit. The Phoenix Gen2 version features Polymer80's proprietary polymer composite, a solid core design, stiffened magwell and beefier MILSPEC buffer tube housing. Questions and Answers. View Details James Madison Tactical (JMT) .308/7.62 80% Polymer Lower Receiver & Jig . These lowers require additional machining for the fire control group, trigger pin, hammer pin, trigger slot, and safety selector hole. You will definitely need a tabletop vise to secure your receiver blank and 80% jig. AR15-Kits.com. We are The Masters of the Black Arts of Tooling ™. Out of all the tools listed above, this 80% jig with bits, commonly known as 80 lower jig, comes into the finishing stage.. The Patriot setup works with our AR-10 / LR-308 80% lower receivers, too. No FFL is required to purchase this 80% Lower. Easy Jig 80% Lower Receiver Jig End Mill Bit. 0 . The 80% AM-15 Machined Lower is finished in Type III Hard Coat Anodize, Black in color. Features: Fast and Easy; Insanely Durable; Optimized For Use With a Router; Truly Universal 80% AR-15 Lower Receiver Compatibility; Centered and Aligned Finished Features In stock and ready to ship. Ships within 1 - 3 Business Days! In stock. Add To Cart. All 80 lower jigs allow for three horizontal holes to be drilled into the side of the jig. Stiffened magwell, ultra-light design. This is a Polymer 80 Complete Build Kit w Glock Compatable Slide with RMR cut is a great self defense or range handgun. Jig is constructed of 6061-T6 Aluminum. The Polymer 80 RL556v3 80% AR-15 Lower with Jig System, is an amazing polymer AR lower. 3 of 3 Items. Click for Price. The Elite Builder Jig above can fabricate the former two. LEARN MORE. No FFL required to own or use. Only ten holes are required, as opposed to the 42 or more holes required with a drill press jig. This jig will also fit all other 80% lowers on the market. Specializing in 80% lowers, 80% lower jigs & AR 15 Build Kits. Once you have your 80% lower receiver and jig, there are some extra items you will need to round-up to make sure you have a successful build. 80% Lower: Required Tools. The .308 80% Lower Receiver Design features: Unique reinforced polymer design with solid core design. Top quality, U.S. Mil-Spec parts. Since, by design, an 80% lower still requires the builder to complete the last 20% of the milling process to make the receiver functional, an 80% jig removes the need for . Use the Drill Press to drill each 3/8″ Hole to a little . There are three top plates that are interchangeable to allow you to . 1. AR-10 Lower Receiver Jig Kit. Reviews. This gunsmithing combo kit allows you to confidently cut and drill multiple AR-15 and AR-9 80% lower receivers without losing speed or accuracy. $81.99. Hardened steel template plates and a self-aligning design make . 1 ea. This tool kit is the industry's first that is specially designed and manufactured to optimize the machining of personal built lower receivers. NO BACKORDERS. 0.125" HSS Drill. Pair that with our press fit stainless steel drill bushings and depth gauge (included with the jig), you will have . Make your own AR-15 or AR9 platform without . Lightweight and maneuverability have always been a focus with the AR-15 platform. There's NO expensive jig kits and parts to purchase - our system is a COMPLETE, all inclusive package in one price! Not for use with AR9, AR10 or other specific caliber lowers. - CNC machined from 6061 billet aluminum. A router and end-mill bit are used with this jig and are . Come check out our selection of American-made 80 lowers today! .308 80% Lower Receiver & Jig. I used a Broken Arms 6061 billet lower receiver for my first 80% build & I'm glad that I did. The kit comes with 3 aluminum jig plates, 1 steel top router plate, and all screws necessary for assembly. Please note that the rear lug pocket for the upper must be finished in the machining process in order to seat an upper California requires 80% Receivers . H (0.266") HSS Drill. Click the link below 'Download AR . 80 PercentArms Compatible 80% AR-15 and .308 Lower Receiver Drill Press Jig Replacement TiN Coated Drill Bit Kit Made in USA Gunsmithing Tools and supplies AGT's kits are a SIGNIFICANT UPGRADE to any kits on the market "TiN" Coated high speed steel drill bits, custom cut to our specifications. After two years of planning, design, engineering, and testing, we're proud to introduce the industry's first reinforced polymer receiver designed for the DPMS styled .308 in an 80% format. Out of stock. Join Waitlist. 80% lower receiver combination sets for AR type rifles. $94.99 $59.99 Sale. Polymer80 AR-15 80% Lower Receiver with Jig and Bits *ADD TO CART FOR $54.99* Polymer80 AR-15 80% Lower Receiver with Jig and Bits Add To Cart For $54.99 FEATURES: Unique reinforced polymer design with solid core design ATF compliant design Beefed up buffer tube ring and ribbing across the entire. NO FFL REQUIRED. mill bits. This Elite Builder 80% Lower Jig is compatible with our Forged 80% Lowers and our Premium Fire/Safe Marked . J100. Glock Compatible 19 Guide Rod. Another contender in the router-based universal jig world is the 5D Tactical Universal Jig ($259). Contents: 1 ea. Made from hardened steel plates, the Elite Builder jig can machine any standard (mil-spec) forged, billet, or polymer receiver without breaking a sweat, with results as . Includes all the parts you need for machining, including a drill bits kit, fixture plates, and end mill bits. Toggle menu. Notify Me. Offers assurance of production quality since the 80% jig is made of high-quality . Complete your AR's 80% lower or new handgun's 80% frame with an affordable 80% lower jig. 80% Jig. Visit the tutorial for more details on how to finish Kevin's new 80%'ers. Product Description The Polymer80, Phoenix2, AR15 80% Lower and Jig System Includes the Phoenix2 system This system is designed as a complete kit. These 80% Lowers are Designed off the AR-15 Platform. THIS IS A NOT AN FFL ITEM. If you already have the right drill bits, just a jig will work fine. Kevin has made it easier to complete an 80% lower receiver by leaving the fire control area solid, drilling most of the side holes and tapping the buffer tube hole. May not function with some billet or polymer type lowers. Polymer80 - AR-15 80% polymer Lower Receiver & jig kit. These are the same bits we use in our commercial CNC machines at the . Here's a factory new Jig to start your AR-15 style masterpiece right. Tooling required to finish an 80% AR-15 lower receiver. The Router Jig PRO can be purchased as AR-15/AR-9 Only. 3/8 Drill Bit. Resin and epoxy lower receiver mold kits include a reusable nylon mold, two- part resin, and support braces to mold your own AR-15 lower receivers. AR-15 80% Lower Receiver Professional Jig Tool Kit - This is Hands Down the best tool kit you can get for Milling and drilling 80% AR-15 Lower Receivers-out - 80 percent tool kit - 80% drill bits - 80% percent tooling - AR-15 gun building - Milling 80% percent lowers - Gun building - Lower - ghost gun lowers - Ghost gun building - Ghost gun milling . Polymer80 Warrhogg .308/7.62 80% Lower Receiver and Jig System .