These assemblies have been exceptional replacements for the stock springs and they LOOK AWESOME. The option to have a variety of weights which I can immediately see by varying the guide rod screw color. BTW the NDZ colored receiver pins are a small upgrade that also just cool. . .

I am very impressed with NTZ’s customer support. I had an issue with a mag release that I received. They contacted me within hours to solve my problem. I highly recommend doing business with this company.

Great products, Great prices, Fast shipping. I will keep buying from NDZ!!!

Great

Good job

Purchased a 15lb spring and steel rod for a CZ P10C. Ported. The difference in recoil is amazing! Thank you. Please do that for the Canik MC9 Prime!

👍

Fast shipping, well packed, perfect fit!

The transaction was conducted perfectly

Fast service and shipping. Product as advertised works great.

Good service, fast, everything worked as expected.

great so you do not put 300 bo in to your 223 ar

The capture guide ride for the RXM what’s a good deal I like the price. The installation was simple and easy. I can’t wait to get to the range to try it out.

Top notch. Very helpful & go above and beyond

A well made quality product

Excellent customer service. Two parts were missing from my order and NDZ sent replacements immediately. Thank yall

What I ordered on time

Good Quality service, Fast shipping.

Loveing your products.

Excellent I recommend NDZ performance