Helical Flute Dissipate Gas, Hide Muzzle Flash
Four, specially angled flutes hide nearly 100% muzzle flash, even during full-auto fire, by dissipating gas and retaining unburned powder for increased residual burn. Constructed of the same 8620 bar stock steel used in the manufacture of AR-15/M16 bolts and carriers, then heat-treated to provide a high-strength core and tough, outer shell. Special, helix design helps align exiting barrel gas to improve accuracy with all bullet types. Designed for Kalishnikov-style rifles with 14x1mm Left-Hand barrel threads. Grooved base ring allows the use of a Blank Firing Adaptor (BFA) used by law enforcement trainers. Left-hand flutes will not come loose during sustained fire.
Big Book Catalog, Issue:66, Page:172
Law Enforcement / Police Store, Issue:08, Page:028
SPECS: 8620 steel. Black, phosphate finish. 14mm- 1.0 LH thread. 2-9/16” (5.5cm) long, .860” (2.1cm) dia. 2.8 oz. (79g) weight. Fits all AK-47’s chambered in 5.45mm M74, 5.56mm NATO and 7.62 M43 cal.