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Lower Receiver Parts Kit For The DIY Gunsmith. These lower receiver parts will make finishing your DIY AR-15 build project easy. This lower receiver parts kit includes the components you need to complete your 9mm lower. The parts we offer here at Thunder Tactical are all machined to military standard tolerances. Save money by purchasing the parts you need as lower parts kits such as this one.
If you’re a DIY gunsmith building your own 9mm, then you’ll need the best AR lower parts kit available. This 9mm lower parts kit available online at ThunderTactical.com includes all of the lower receiver parts you’ll need to complete your 9mm lower. From the pistol grip and the trigger to the hammer pin and all of the vital springs needed for everything to function correctly, this parts kit has everything you need.