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80% Arms sells AR-15 and .308 80% Lower Receivers, 80% Lower Jigs and other accessories which allow you to legally build a firearm at home in most states.
We utilize state of the art 5-axis CNC machines to mill all our .308 and AR-15 80 percent lower receivers to incredibly precise tolerances using premium billet aluminum.
We also offer our patented AR-15 and .308 Easy Jigs which is the first 80% lower jig that makes it ridiculously easy for a non-machinist to finish their 80% lower in under 1 hour with no drill press required.
Products manufactured by 80% Arms carry a lifetime warranty against manufacturing defects. We will promptly replace or repair any product that we determine to be defective.

GST9 - MOD 1 - Billet Grip

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Introducing the all new billet grips for the GST-9 MOD1. The GST-9 frame has always had a small and large grip module selection, giving users the option to have a G19 or G19X style profiles with their 80 percent pistol builds. Now, with the new MOD1 billet grips, users can enjoy a larger flared magwell and the feel of a textured palm swell to enhance the experience with their MOD1 builds. 

The MOD 1 billet grip is definitely not just for show. Along with looking fantastic, the increased weight improves the balance of a built-out MOD1, enhances the grip; by giving users better recoil control it also improves shooting performance. And of course, the flared magwell serves to assist in faster reloads with a larger mouth diameter than the stock grip modules. 

Additionally, 15 round magazines will sit flush with this billet grip so if you want to concealed carry your MOD1 with this grip you certainly can!

Currently, the billet grips are offered in Anodized Black, Burnt Bronze, and FDE.

*Please note, this grip was designed for specifically the MOD1 and is not compatible with the Legacy frame.