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© 2017 by Mac's Gunworks. 

Northwest Precision Muzzle Brakes proudly made by Mac's Gunworks in Gillette Wyoming USA. Find us on the web and social media.


Custom contoured to your specification, keep reading to find out how this works!!


Introducing NPW NoTimer Muzzle Brakes! Our newest brake for customers looking for performance and easy installation. 


NPW NoTimer Muzzle Brakes do not require timing or indexing to your barrel.


Make no mistake, these brakes brake, we bore these specific to your caliber as we do with all of our brakes. 


NPW NoTimer Muzzle Brakes are threaded, crowned, bored to your caliber, and optionally contoured, leaving you or your gunsmith the opportunity to achieve a seamless transition from barrel to brake. 


We will custom contour the rear of the brake to your specification, for example: Let's say you have a 6.5mm Creedmore with muzzle diameter .750" and 5/8-24 threads. We can contour the  NPW NoTimer Muzzle Brakes from .750" muzzle diameter to the larger brake diameter, most often .850". See listing photo's for examples of what this looks like. 


See below how to order your custom contoured brake! -and the size limits.


FAQ: Our NWP Muzzle Brakes come in two finishes. The default finish is "polished stainless" which means belt sanded while in the lathe. We will also media blast the brake for a non-shiny finish. Please see listing photo's for example of both finishes side by side. 


**Website customers** We offer Cerakote color of your choice, please go back out to the store and add a Cerakote to your cart. Please expect a couple extra days to ship. 


The following information applies to all our muzzle brakes.


Made from certified 416R stainless steel


2.46" Long


5/8-24 Muzzle brakes come in outer diameters:            .850, .950, 1.00, & 1.25 (inch)

5/8-24 minimum custom contour diameter:                    .690 (inch)


1/2-28 Muzzle brakes come in outer diameters:            .700, .850, .950 (inch)

1/2-28 minimum custom contour diameter:                    .600 (inch)


NPW NoTimer Muzzle Brakes come bored and crowned to the buyers requested caliber (or ready for your gunsmith to do so)


1/2x28 thread is recommended only up to .308 caliber.


A minimum muzzle diameter of 0.690" is needed for 5/8x24tpi if you are going to have a gunsmith add threads to your barrel.

A minimum muzzle diameter of 0.600" is needed for 1/2-28tpi if you are going to have a gunsmith add threads to your barrel.


Don't know what specs you need? Feel free to shoot us an email and we'd be happy to assist. 


Please note: For the safety of yourself and those around you please have your brake installed by an experienced gunsmith. 


Happy shooting!

NWP NoTimer Muzzle Brake (All Calibers)

  • Brand: Northwest Precision
    Manufactured: Gillette, WY (On Site)