Lower Parts

Luth-AR AR15 Rifle Buffer The Luth-AR AR-15 Standard Rifle Buffer is compatible with a rifle buffer tube and rifle recoil spring, and is for use with an A2 fixed buttstock. This buffer comes with 5 internal steel weights and weighs 5.1 oz. Luth-AR, Rifle...

Luth-AR AR15 RIfle Buffer Spring - A2 Length High quality components and precise manufacturing make LuthAR parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of...

Aero Precision EPC Lower Parts Kit - Minus FCG / Grip - OPEN BOX Build your EPC lower receiver with confidence using this purpose-built EPC Lower Parts Kit. Designed to include only the components required for assembling an EPC Lower Receiver, this kit...

KAK Industry KF-15 Complete Lower Receiver - A2 Stock - Black Build your AR platform on a foundation you can trust with the KAK Industry KF-15 Complete Lower Receiver. Precision-machined from premium USA-produced 7075-T6 forged aluminum, this complete...

LMT MARS-LS Stripped Lower Receiver The Lewis Machine & Tool MARS-LS Stripped Lower Receiver is a high-performance AR-15 foundation engineered for builders who demand precision, modularity, and fully integrated ambidextrous control. Built on the...

SOLGW Loyal 9 LFT Complete Lower Receiver - No Stock Build your AR-15 on a foundation trusted for duty use, hard training, and long-term reliability with the Sons of Liberty Gun Works (SOLGW) Loyal 9 Complete Lower Receiver. Precision-machined from...

 Designed to improve the reliability and function of an AR-15 platform, it features unique drain holes for rapid water drainage and offers 10 stock adjustment positions. This 10-position buffer tube offers significantly more length of pull...

To reliably use the ARC-Fire or Super Safety with Geissele and certain other triggers with tail-less hammers, you will need this "lever blocker" that essentially prevents over-travel of the lever where it gets caught under the hammer. If you use standard...

WILL NOT WORK WITH ARC-FIRE V2 ARC-Fire Mil-Spec Style Selectors These are offered as the long primary + short ambi OR long primary + long ambi. They come as a set and work with existing ARC-Fire kits.   4140 Steel - Black Oxide...

WILL NOT WORK WITH ARC-FIRE V2 ARC-Fire Mil-Spec Style Selectors These are offered as the long primary + short ambi OR long primary + long ambi. They come as a set and work with existing ARC-Fire kits.   4140 Steel - Black Oxide...

ARC-Fire Trigger V2 - Ambi Kit (0° - 45° - 90°) V2 DIFFERENCES - DIFFERENT SELECTOR ORIENTATIONS AVAILABLE - SMOOTHER DETENT TRACK - LARGER CAM SURFACES - COMES STOCK WITH MILSPEC SELECTORS (PICTURED)     Introducing the AS Designs...

ARC-Fire Trigger V2 - Ambi Kit (0° - 45° - 180°) V2 DIFFERENCES - DIFFERENT SELECTOR ORIENTATIONS AVAILABLE - SMOOTHER DETENT TRACK - LARGER CAM SURFACES - COMES STOCK WITH MILSPEC SELECTORS (PICTURED)     Introducing the AS Designs...