BRT 16" OPTIMUM SPR Barrel
BRT OPTIMUM SPR Profile
The BRT OPTIMUM SPR profile combines art and science to maximize performance. While its smooth transitions and gentle tapers are organically inspired, the end result is backed by extensive analysis, design and testing. The profile is thicker near the throat for better heat resistance and uniform thermal performance, tapering toward the muzzle to reduce weight and improve balance. The handguard cap shoulder is eliminated from the .750" diameter gas block journal, which is dimpled for simple installation of a BRT MicroPin gas block. The end result is a medium weight, fast handling barrel with improved consistency across various loads and firing schedules.
BRT Extended Length Gas System
The BRT extended length gas system was created to allow optimum performance from 16" barrels. The gas system length controls the timing of the gas cycle and overall gas drive available. Existing gas systems, while functional, don't offer the balance of factors to allow exceptionally smooth cycling with maximum reliability. The BRT design balances these factors to optimize gas system performance under extreme conditions.
The BRT extended length gas system is longer than the standard mid-length, but shorter than the Noveske Intermediate length, which was designed for use with 18" barrels. The BRT EXT length gas tube is included.
BRT barrels are designed to work best with full pressure 5.56 ammunition and the following buffer systems: VLTOR A5H2, Rifle and Carbine H2.
BRT Hybrid Target Crown
The BRT hybrid crown is a combination of match winning 11 degree target crown and robust military crown. It combines the best attributes of each without any of the liabilities.
Suppressor Ready 5/8-24" Muzzle Thread
Precision cut threads are specified to a tighter tolerance and better bore alignment than standard threads, while maintaining compatibility with all common muzzle devices.
4 Groove Rifling 1/7 Twist
The 1/7 twist rate stabilizes the heaviest projectiles in extreme environments, while producing excellent performance from lighter training and varmint projectiles.
416R Stainless Steel
This certified stainless steel is produced exclusively for use in rifle barrels. This steel is inspected and certified to meet strict requirements of chemistry and composition at the mill before continuing on to be made into a barrel blank.
BRT stainless barrels are bead blasted to a satin finish outside to blend beauty while retaining the corrosion resistant properties of the stainless steel.This new surface improves extraction and velocity while resisting fouling and corrosion.
Hand Lapped Bore
BRT stainless barrels are hand lapped to polish the bore to a very smooth surface. This process improves accuracy and velocity while resisting fouling.
223 WYLDE and 5.56 MOD0 chamber
This proprietary chamber allows maximum compatibility with all commonly available ammunition types, including military 5.56, brass cased .223 and steel cased .223. Improved dimensions over a 5.56 NATO chamber offers match grade accuracy while allowing maximum reliability and ammunition compatibility.
M4 Barrel Extension
This includes enlarged and lengthened feed ramps to ensure smooth feeding of all ammunition types. The barrel extensions are black oxide finished, ensuring excellent longevity and performance.