The New "SL" Series Upper and Lower Receivers

Our new “SL” Series of Upper and Lower Receiver sets have arrived.  We have been waiting for this tight new set to add to our line-up.   This amazing quality Bar Stock Receiver Set are 7075-T6 Aluminum, Precision Machined for high tolerances, and Type III Hard Coat Anodized.   There’s no guarantee how long they will last or when we will be able to get our next set.  Don’t miss out!

Ready...Set...Go! 1:5 Twist are here ready to Custom Order!

300 Blackout 1:5 Twist
300 Blackout 1:5 Twist

We have what you’ve been looking for the .308 1:5 Twist is on the site and ready to be customized to your specs.  Order before the back-log hits!

The 9mm Barrel "Weight" has been lifted...

MOS-Tek M-Lite
The M-lite 9mm AR15 350 Legend Barrels is the newest innovation from MÔS-Tek. The new design reduces weight but maintains the larger diameter that so many equate with AR15 firearms. In addition to the weight reduction the aluminum sleeve also dissipates heat which extends barrel life.
The M-lite is a premium precision match grade Lightweight Barrel, the highest quality on the market. The barrel is 416-R with 5R rifling. The feed cone is a new MÔS-Tek design the results of testing over 30 different styles. We’ve tested all styles of 9mm bullets to produce a very reliable feeding system. The sleeve is 6061-t6 and comes anodized or cerakoted in multiple colors and designs. The total weight of the barrel is 6.4 oz. Total barrel length is 5″. Threads are 1/2″-28 x .400. 

The 350 Legend has been well tested, tweaked, and modified at MÔS-Tek.  When we send your AR15 350 Legend barrel to you it will work!  We test fired it before it shipped…so we know it will!

Testing Squelch Muzzle Brake

Out testing the Squelch muzzle brake today. It’s taking a beating but holding up perfectly. Making freedom, it’s what we do.



AR15 350 Legend Complete Upper Engraved Door
MÔS-Tek is proud to offer products that are 100% made in the USA. Take these Dust-Covers for instance. Made in the USA and custom engraved.  Order on the web-site $30.00 shipped.

Muzzle Up!

MÔS-Tek is proud to add Muzzlebrakes to our line-up of top quality products. Developed and Machined on-site the precision of the threads and cuts are spot on. We have them on an introductory price point, so grab one before the price goes up!

New PCC Buffer Design

Working over the old design of a Buffer, Gabe designed this new MÔS-Tek version Always looking for new and innovative designs. Nice job Gabe!

At Work in the Summer

Summer in AZ are HOT HOT HOT!  Not in the shop though!  Gabe is nice and cool kicking out precision barrels on the HAAS CNC Lathe.  Doing what he loves…in the “Great Indoors”.