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Old October 3rd, 2011, 21:05   #12
ap27's Avatar
Join Date: Jun 2010
Location: Brampton, ON
I think TM 5-7 is known to break over time because of propane use. The breakage occurs in some major part and not just cracking in the slide/barrel. I have a TM 18c and so far propane seems to be working well. I have a stronger recoil spring in there but I'm certain that eventually the plastic slide with give way. Will upgrade to a metal one when that happens.
H&K G36c (KWA) / Glock 18c (TM) / Kimber LAPD SWAT Custom (TM) / Mossberg M500 (ACM)

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