6315 Comp / Flash Supressor Test

Posted by Roger Wang on 2/27/2017 to News
We arrived at 0430, with the hope of having at least an hour's worth of darkness for filming 6315 and A2 flash suppression footage.  Videos of A2 muzzle flash are abundant, still we wanted the ammo, barrel length and atmospheric conditions to be equal when we compare the two.

Alas, by the time we got set up, it was no longer pitch dark, but it was low light enough we still had to use flashlights to go about things.

The pictures shown here are from 30fps video footage, we opened up the aperture to capture as much flash as possible, but in so doing, it made the background appear brighter.  Allow me to assure you,  it was quite dark still [BD]  We have other pictures from a camera with manual aperture, but I don't have the images yet.  As you will see shortly, the day brightened up very quickly between the 14.5 and 10.5 tests.

The tests confirmed our prediction regarding the flash signature.  Within the established confines of the A2 specs (length, diameter, closed end, closed bottom), we were able to squeeze out only a little better flash suppression with the 6315.  The pictures from the footage don't show the improvement, it was visually verified by those present.  When we get the footage from the other camera we should be able to show with more authority.

The most important aspect we wanted to test/confirm is 6315's compensator abilities.  As you recall, 6315 has asymmetrical ports.  3 and 9 o'clock ports are shorter and narrower, and are 25% smaller than the other 3 upward facing ports.  The design vents more gas through the larger 3 upward facing ports than the smaller 2 side facing ports to help keep the muzzle down better.

Test results were obtained from experienced shooters and a new shooter.  Same test rig, ammo (XM193), different muzzle devices (A2 and 6315).  They were able to confirm through repeated strings of fire that the 6315 changed the characteristics of the muzzle rise.  With the 6315, the muzzle rise isn't eliminated (not a design objective, this isn't a pure compensator or brake), it's perceptibly reduced, they were able to get back on target faster than with an A2.   The test rig has a 4x32 ACOG ECOS, it's a permanent fixture on my test rig and it was used for this test to better see the difference in muzzle rise.

Here then, we have the essence of the 6315.  A versatile, light and short muzzle device, compatible with BFA and A2 mounted sound suppressors, that suppresses muzzle flash signature as well (if not better than the A2), keeps the muzzle rise down (better than the A2), without the concussion and noise that accompany a brake or compensator.  We're happy with the results :)

Now the pics.

Test rig: