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AR-15 Rifle Kit For The DIY Gunsmith. Starting or continuing your AR-15 build project will be simple with one of our rifle kits. This AR-15 rifle kit for sale includes an assembled upper receiver and an 80% lower receiver. The rifle parts we offer here at Thunder Tactical are all machined to military standard tolerances. The stock included in this rifle kit is a six position stock with buffer, buffer tube, and spring. This AR-15 rifle kit for sale will make your rifle build project easy. The assembled .223/5.56 upper receiver includes the following rifle parts:
The 80% Lower Receiver or 80% Skeleton Lower Receiver * included in this rifle kit also comes with a six position stock and a lower parts kit. Keep shopping our gun parts online to discover the other AR-15 rifle kits we have to offer.
This is not a complete receiver and still requires machining to be done.