It provides low light performance nearly as good as the common A2 style muzzle device.
Measures 1.500” in length and .8635” (22mm) diameter.
Weighs only 1.75 oz, less than an A2 style muzzle device
FLBS-3-900 MINI is designed for use with bores up to 9mm / .358 caliber with 1/2-28 threads.