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. READ MORE
Mag Couplers (4)Mag Loaders (8)Magazine Accessories (21)Magazine Capacity - 10 rd (58)Magazine Capacity - 20 rd (20)Magazine Capacity - 25 rd (7)Magazine Capacity - 30 rd (64)Magazine Capacity - 40 rd (7)Magazine Capacity - 5 rd (10)Magazine Capacity - 60 rd (2)Magazines (144)Magazine Capacity - 12 rd (1)Magazine Capacity - 13 rd (1)Magazine Capacity - 15 rd (11)Magazine Capacity - 18 rd (1)Magazine Capacity - 19 rd (2)Magazine Capacity - 22 rd (1)Magazine Capacity - 26 rd (1)Magazine Capacity - 28 rd (2)Magazine Capacity - 32 rd (4)Magazine Capacity - 9 rd (2)Magazine Capacity – 17 rd (7)Magazine Capacity – 21 rd (2)Magazine Capacity – 24 rd (1)Magazine Capacity – 27 rd (1)Magazine Capacity – 33 rd (3)Magazine Capacity – 50 rd (3)Pistol Magazines (49)Rifle Magazines (171)Shotgun Magazines (3)
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
Fast, free shipping (over $50), 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!
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.
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
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.