On 12-24-09 I contacted Pat Rogers to see what the current round count of the BCM 16" Mid-Length that he has been loaning out to students. Pat refers to this BCM Mid-Length as "Filthy 14" and provided me with the following information on this gun:
"Filthy #14 is the most used, and has (as 12-24-09) 28905 rounds down range. The barrel is original. It has never had a brush put through it. -At 16,400 rounds bolt lug cracked. Replaced the bolt carrier group
-At approximately 26,000 rounds fired a 5 shot 50m group that went into 0.5". This might not be that tight at 100 meters.
-At 26,450 rds had 3 failures to extract. Replaced BCG and cleaned gun for the first time
We use only SLip2000 EWL for lube and Slip 2000 725 to clean.
**All of the rounds were fired during class (at the rate of approximately 1,250 rounds every 3 days)**
I do not recommend allowing the gun to go this long without PM (preventive maintenance). However, we wanted to see how far we could take this particular gun (#14) without being burdened by the myth of meticulous cleaning."
Keep in mind the punishment that Pat Rogers' BCM mid-length has been put through. The gun is being shot approximately 8 hours a day in a tactical training class environment at the rate of approximately 1,250 rounds every 3 days. Very few people have the time, money, or effort to run a gun like that for 28,905 rounds. This upper has the standard barrel, not the new BFH (cold hammer forged) barrel.
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