The Mod 0 is the shorter length and the Mod 1 is longer for pinning and welding to make a 14.7" barrel of legal non NFA length.
There appears to be a difference inside the Comp and has been discussed some here on M4. The internal chambers?
My Question is, Is there any benefit/difference in the 2 Comps if you placed a Mod 1 on a 16" barrel, except for a little longer OAL?
I hope my question is clearer than mud.
I have both on 16" barrels. I cannot tell a difference. They both work quite well though. (I was the one that posted the pic of the extra ports in the Mod 1, I was wondering the same thing you are)
According to ESK the expansion chamber on the MOD 1 adds the equivalent of 1" of extra barrel. Not typically needed on any 16" Middy or carbine gas systems.
Thank you, May use a MOD 1 so my AR muzzle device will rest in the cutout in the safe.
Just a little short even with the stock extended.
I saw when ESK posted that & now this has me thinking… I bought the new 7.62 Mod 1 for my M&P10, which is an 18" middy. It has the same expansion chamber as the 5.56 version but it’s not drilled for pinning. They also don’t offer a 7.62 Mod 0 (yet??). So does the “adds extra 1” equivalent" still apply here for the 7.62 version? Why no Mod 0? Does the 7.62 add other variables that negate a Mod 0? Doesn’t seem that the extra length of the Mod 1 would be much of a factor as most of the 7.62’s (that I’ve seen) are already 16" or over.
I have the Mod 1 on a 14.5" and a 16" with a Mod 0, both BCM’s, and the 14.5" seems to me to be a softer shooter.
Sent from my iPhone using Tapatalk
Not sure how that works on 7.62.
As far as the 14.5… if it’s a middy, then that’s why it’s a soft shooter.
I ordered a Mod 0 for my 16in middy, by mistake I got the Mod 1. I decided to keep it, it works well.
Keep in mind, that the BCM Gunfighter comps sacrifice part of their stainless steel construction within itself. You WILL see pitting and some discoloration over time, and that’s normal. I saw a picture of a well-used BCM GFC that was pitted and had a green discoloration to it…which is totally normal.
[i]"The combustion gasses exiting the muzzle of a rifle are extremely hot, traveling at extreme velocity, and contains not only burning gasses but solid particles of unburnt powder as well as metals from the projectile. Due to the inherent nature of steel, it is nearly impossible to survive unaffected in this environment when directly exposed. The high temperatures begin to make the steel more malleable, which allows solid particles and pressure waves to deform and erode surfaces upon exit.
Due to the new and unique design of the BCM compensators, the user may notice small pits on the interior surfaces of the compensator. This is normal. Most designs do not impede the exit flow very much, while the BCM approach is exactly opposite. These surfaces are specifically designed to operate within the environment found at the muzzle, and are intended to allow significant amounts of deterioration before any loss of performance is seen/felt. These compensators have been tested through many thousands of rounds, and while the wear surfaces may give pause to some users, trust when we say that it’s normal."[/i]