Modulus Arms

Haven’t had a chance to use this product yet. I ordered the milling jig and 3 lowers and everything was packaged well and in great shape. Delivery time was very fast and by first appearance I will be happy with this product. I will write another review when I mill out my first one.

High quality router jig that really simplifies the process, recommended to all who are DIY enthusiasts!

I am bought the package deal with 3 lowers and have enjoyed using the jig to mill them. I have found a new hobby.

Super satisfied with the ar jig, tools and lower. At a time where everyone is trying to buy asap i good my order quicker than expected. Will be ordering more.

The router jig extreme is the best on the market. I love the solid side plates with hardened steel bushings. Only one hole needed for milling. And touch less side plates. Huge upgrade from other jigs.