The E3 Arms Plumcrazy GEN II is a premium, multi-caliber AR-15 polymer lower receiver engineered for the acceptance of mil-spec components and works on any AR-15 upper receiver!

Milled from a proprietary variant of glass-filled nylon-6, the Plum Crazy multi-cal lower receiver is more resilient to damage than traditional aluminum lowers. Durable & lightweight — with exceptional structural integrity and excellent chemical resistance — these E3 GEN II receivers have been proven on training ranges with round counts of 50-97k cycled through with no issues.

The E3 Arms Plum Crazy GEN II AR-15 complete multi-caliber lower receiver — continuing to exceed expectations and redefine the standards for what an AR polymer lower receiver can be. 

Features

• Milled from premium, glass-filled nylon-6 polymer
• Winter/over-sized trigger guard
• Improved ergonomic grip w/ trap door
• Polymer buffer tube with 6-position collapsible/adjustable stock
• Fire controls require no lubrication
• Castle nut has been factory torqued and staked
• Lighter & stronger than aluminum — can be run over at the magwell without being crushed
• Retains color when scratched — scratches can be removed with WD-40 and a green scratch pad
• New to Gen II: Reinforced water line and internal pocket radius toward the rear of the trigger 

Please Note: Manufacturers warranty will be void if:

• Seal is broken — DO NOT tighten the castle nut — Castle nut is factory torqued with a special plastic indicator seal in it.
• Installed on a pistol upper — Lower CANNOT be used to build an AR pistol.