Very good
Very good
Silicon Carbide extra power spring for MPX with +10 basepad.
The extra power spring is designed to enhance feeding and to ensure the bolt locks back when empty.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Very good
The spring with the extension work great. The only problem is that the extension is very difficult to remove so the magazine can be cleaned. I had to drill a hole in the bottom of it so the spring could be pushed into the magazine allowing the extension to be removed without bending the spring. The only malfunction I have had with my MPX was due to dirty magazines. They need to be dissembled and cleaned.
The spring and the coyote Bass plate I bought work flawlessly for my Sig MPX 9 mm definitely buying more
