Lower Build Kits

Lower Build Kits 
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223 308 Buffer Retainer Spring -100 Pcs

This is our universal Retainer Spring. It's compatible with AR-15 and AR-10 buffer tubes in bot..

AR-15 6 Position Stock Kit -Mil Spec w/ Lower Parts Kit Exclude Trigger and Hammer

Includes:Lower Parts Kit ExcludeTrigger and HammerAR-15 M4 Six Position Buffer Tube Kit -Mil-SpecAR-..

AR-15 6 Position Stock Kit -Mil Spec w/ Lower Parts Kit - Standard Grip & Trigger Guard

Includes:Lower Parts Kit w/ Standard Grip & Trigger GuardAR-15 M4 Six Position Buffer Tube Kit -..

Pivot Pin in Silver -Long

The extended and grooved head on the pin makes separating the upper and lower receivers easier and f..