My girlfriend had a spare BCM upper that she decided she'd probably never use, so I bought it from her.
It's a carbine length upper with the BCM gunfighter compensator https://www.bravocompanyusa.com/BCMG...-mod-0-556.htm installed.
The upper has functioned 100% with two BCM lowers I tried it out on, but every once in a while I will feel a momentary "sting" on my left cheek. I have never experienced this with any other AR or upper in my entire life. It usually only happens one time during an entire range session of 100 rounds or more. It usually happens early in the range session. I looked at the compensator and I don't see any evidence of bullet strike. I also don't get the compensator oily so that it might spray a red hot droplet of lube back at me. I wear prescription safety goggles when I shoot so I'm not worried about losing an eye. It's just one of those "what's causing this?" issues.
What is the likelihood that the Gunfighter compensator is "spitting" material back at me?
Could it be that or is it more likely something else?
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