Most Popular Lower Receiver for AR-15 / AR-10 / AR-9 Builds in 2026
The top 15 most-used lower receiver in 2026, ranked by how often they appear in builds tracked on AR15.Build. Updated nightly.
The lower receiver is the serialized heart of your build — legally, it is the firearm. Forged aluminum is the industry standard, though billet options offer tighter tolerances and more aesthetic choices. The most popular picks below balance quality, fitment, and value across thousands of tracked builds.
- 1
Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL
5 builds$208.95 - 2
Aero Precision Inc M4E1 223/5.56mm AR-15 Stripped Lower Receiver
5 builds$108.50 - 3
Geissele Automatics Super Duty Stripped AR-15 Lower Receiver - Desert Dirt
5 builds$200.00 - 4
AERO PRECISION AR-15 Gen 2 Stripped Lower Receiver - Matte Black
4 builds$89.99 - 5
LMT MARS-L Ambidextrous AR-15 Stripped Lower Receiver
4 builds$342.00 - 6
PSA AR-15 "Stealth" Stripped Lower Receiver
3 builds$79.99 - 7
PSA AR-15 Lower Safe/Fire - 1728
3 builds$74.99 - 8
Aero Precision AR15 Stripped Lower Receiver, No Small Logo - Anodized Black - APAR148001C
3 builds$59.99 - 9
PSA AR-15 M4 Carbine Stripped Lower Receiver
5.0 (1)2 builds$79.99 - 10
Griffin Armament MK2 Ambidextrous AR-15 Lower Receiver
2 builds$208.95 - 11
MIDWEST IND Forged AR-15 Lower Receiver Multi
2 builds$145.99 - 12
17 Design And Manufacturing AR-15 Billet Aluminum Stripped Lower Receiver
2 builds$149.99 - 13
Geissele Automatics Super Duty Stripped AR-15 Receiver Set DDC
2 builds$263.00 - 14
AR-15 Stripped Lower Receiver - M4 Scalper Stripped Lower Receiver Black
2 builds$137.75 - 15
Aero Precision AR15 Ambidextrous Lower Receiver - Anodized Black - APAR501102AC
2 builds$99.99
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