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Welcome to the Feinstein Project

Schuylkill's done it - World's first firing plastic brick AR lower receiver!

His overview video can be found in Effort Bloomberg under Lines of Effort.

The Virginians 22 lower.

The Feinstein Project is a crowd-sourcing project to design a working AR semi-automatic lower receiver out of small ABS plastic building blocks, held together w/ ABS cement. It is not an attempt to build an illegal machine gun or an undetectable plastic gun.


Lines of Effort are the sub-projects we are working on. Please pick one and join us!

To the extent possible under law, The Feinstein Project has waived all copyright and related or neighboring rights to all designs on this site. This work is published from: the United States. All trademarks remain the property of their respective owners. No warranty, implied or assumed, is associated with any design from this site. NO WARRANTY. USE AT YOUR OWN RISK. CHECK YOUR LOCALE'S LAWS BEFORE BUILDING.


AR for Brick Lovers

Bricks for AR Lovers

A Short History of the Feinstein Project

The Conspirators


Please feel free to email us with questions and suggestions - a picture of our email address is at the bottom of the page.

Are you looking:

for the Feinstein Mag?

to feed the hungry? www.feinsteinfoundation.org

for Senator Dianne Feinstein?

This page was last updated on 5 October 2013

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