AR-15 Lower

"Gorilla Machining has the best source for AR-15 Lower Receiver Assembly Parts. If you are building a stripped lower receiver into a complete rifle or just replacing some old parts, we have everything you need. We have you covered from triggers, disconnector springs, trigger guards, hammer springs, trigger springs, safety selectors, detents, bolt catches, roll pins, build kits, part kits, magazines, stocks, grips, and still so much more. A high-quality lower parts kit is needed to assemble your lower so ensure you have one accessible to take advantage of our lower receiver parts.

Take your time browsing through our varied catalog which is brimming with top-performing components and accessories for your rifles. With years of manufacturing experience under our belts, we are excited to provide a specialized selection of barrels and receivers made directly in the United States. See the quality for yourself and shop American-tough products from Gorilla Machining today. You will be glad you did!

If you have any questions, we are here to be of service. Contact us with your inquiry by phone or email, and we will get back to you with customer service you can count on. Our representatives are professional and friendly, and we will be happy to help you. "