Forum member Kenneth Skorpen (aka “Sal”) from Norway sells a variety of shooting products through the www.Vertebrae.no website. Among the more interesting products offered by Skorpen are a series of muzzle brakes that can be installed on your barrel with no gunsmithing required — if the barrel tip has already been threaded. Crafted in Norway by Vektor Maskin, these muzzle brakes employ an internal inside/outside threaded bushing with a stop nut that fits on the barrel. With the threaded bushing in place, you simply screw the muzzle brake onto the bushing, align it so the ports are horizontal, then set the stop nut and set-screws. (Note, the set-screws touch only the bushing — they do not impinge on the barrel itself.) The video below shows how Vektor spin-on muzzle brakes are installed:
There are compact, standard, and large size Vektor muzzle brakes. Adjustment and installation is the same for all three sizes. The small, compact model, with two rows of opposed horizontal ports, is designed for .223-caliber rifles. The medium (standard) size, with either double or triple sets of opposed ports, is suited for 6.5mm or .308 calibers. The largest size, with three rows of large ports, is configured for the .338 magnum calibers. Skorpen claims that all three sizes of Vektor brakes can reduce felt recoil by 70% to 80% The brake itself is SIS1914-04 steel with an oiled zinc phosphate finish. The internal socket is AISI 303 (SUS 303) stainless steel.
If your barrel is already threaded at the muzzle, the Vektor brakes can be installed with no metal-work or gunsmithing required. Otherwise, you will need a gunsmith to thread the muzzle end of the barrel. The Vector bushings can be machined to a variety of thread types: 1/2″-20/UNF, 1/2″-28, 5/8″-18/UNF, 5/8″-24, m14x1, m14x1.5, m15x1, m16x1, m17x1, and m18x1. Just indicate the thread pitch you require when ordering.
How to Order Vektor Muzzle Brakes
Skorpen’s company, Vertebrae Sikkerhet & Teknikk, exports these Vektor brakes at reasonable prices. With one (1) supplied bushing, the compact brake is $131.43 USD, standard brake is $167.64 USD, and the large (magnum) brake costs $198.49 USD. Extra bushings are available for around $20.00. While the website lists .223, 6.5mm, .308, and .338 caliber brakes, Vetebrae can produce brakes in other calibers on request (add 5 days to delivery time).
You can also purchase Vektor muzzle brakes by emailing joachim [at] vertebrae.no. (It may be cheaper to order direct via email.) Just send an email stating your desired caliber and thread pitch. Normal delivery time to the USA is one to two weeks.