Modulus Arms

Good quality stay sharp with the coating on them.

Instructions are easy to understand take your time don't be in a hurry and your lower will turn out great. Good product works very well.

Works better than the standard Speedmill, cuts faster and smoother too.

All parts came in quickly and are made of high quality.

This is an excellent product. I have completed 2 lowers and getting ready to do a 3rd. No sign of wear. I highly recommend..