I am very pleased with this product. I went from a firearm that was not enjoyable to one that is back in my rotation. I have used three different brands and grains of ammo with know issues

ZR Cut and threaded my 14.5″ 516 to 10.5″. They also did the gas system work. I’m very happy with the upper, and it is gassed perfectly with and without the silencer. Highly recommended.

They received it Friday, shipped it out Sunday! Incredibly fast turn around, dumped 200 rounds through it for a quick zero and zero retention test and accuracy is superb. Could not recommend their service enough, and only at $100! Made me pick them over other merchants and I have not regret my decision

What an outstanding company.

Competitive pricing and great communication, all questions I emailed were answered within an hour over email.

Slide arrived at noon, gunsmithing was done same day and shipped by 5. Craftsmanship was superb, will definitely do business with again!

This is an excellent upgrade, and well worth the money. My Colt/Walther 1911-22 Gold Cup cycles significantly better with the ZRTS spring than it did with the original factory spring. Especially in view of the low price for this spring, it is a tremendous value for greatly improved performance of the gun. Highly recommended.

I’ve now had 5 slides milled for my RMR’S and 507’s. 3 HK’s and 2 1911’s. Work is impeccable and the turnaround time is ridiculously quick! I will be sending in everything to ZRT from now on.

Sent my USP Compact in for an RMR cut and received my finished product in a week. The job was done quickly and precise, I couldn’t be happier. Big thanks go out to ZR Tactical and I’ll be sending any future HK slide work to them as well.

Fast free shipping for the holiday, fair prices.

great item at a reasonable price.

Highly recommend it’s very good quality at fair prices