Real Steel Grade AR-15 M4 M16 Tactical Tri-Rail Barrel Mount

"I purchased this for my KWA KM4, and with the thinner sleeves it cones with, it fits perfectly. Highly recommend for installing flashlights if you don't want your barrel creating a shadow in the beam.

"I've been looking for something like this for a while, as the other review says, the shims are not much help. i own a pts rm4 and the best was using A/C hose ( i think its like 17 mm). Great product overall

"Great product. I used it to convert my WE M16A3 into a C7. However neither shims would fit on my barrel. I used the other dudes advice and used hockey tape/athletic tape which works great

"Well designed with lightweight aluminum by a real steel firearm accessory company. While it comes with 2 different barrel size adapters, neither fit my AEG G&G M16. All that was required was a few wraps around the barrel with some universal adapter (hockey tape) and the larger barrel adapter and I had my laser attached!