AR-15 Lower Receiver Parts

Build an exceptional AR-15 with high-quality lower parts kit from AT3 Tactical

Among the different AR-15 parts, the lower parts kit is the most important.

In AR-15, the lower receiver is considered the legal receiver or the legally controlled part. Hence, it’s the part that is serialized.

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Magpul M3 25 Rd Magazine - 308 Win/7.62NATO Caliber - Fits DPMS/SR25/LaRue OBR - MAG292

Magazines & Parts

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Thanks to AT3 great processing and delivery this is my first build I love the feel and look of these greatly satisfied with them install was super easy and function for griping and maneuvering the mag with this add-on is completely easy and my experience is definitely bringing me back for more parts and accessories

~ William Collins

Fast, free shipping (over $99), hand guard is awesome, easy to install, fits and looks great! AT3 tactical will, from now on, be the 1st website I check for gun items!

~ jerry adams

Great upgrade over the standard one that came on my 5yo Daniels Defense rifle. I like the asymmetric design to give more reach over the forward assist. It has enough stickout to be an easy pull even around the backup Magpull flip ups.

~ Benjamin Brown

Needed a extended charging handle to clear my 1-6x and offset Rmr and this fit the bill, feels solid and works great, can't see spending $40-80+ for Gucci handles when mil specs been working for the life of most guns

~ Daren

Lower Receiver Components for AR 15

AR-15 Upper Receiver Components

AR-15 Sights, Optics, Lights, & Lasers

Other AR-15 Parts & Accessories

Firearms

Build an exceptional AR-15 with high-quality lower parts kit from AT3 Tactical

Among the different AR-15 parts, the lower parts kit is the most important.

In AR-15, the lower receiver is considered the legal receiver or the legally controlled part. Hence, it’s the part that is serialized.

Browse through our list of standard AR-15 lower receiver such as buttstocks, receiver extension buffer tube parts, pistol grips, triggers, magazines, and other lower parts kit.

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