mimesis Posted June 24, 2016 Report Share Posted June 24, 2016 On the TM and KJW M9/92fs series, I know there is a completely different barrel cut and bucking system. I've also observed on the KJ inner barrel two vertical cuts on the sides, about a quarter of the way down the barrel, that accommodate raised ribs on both sides of the inside of the hop-up unit. The TM inner barrel doesn't have these. If you take an after-market TM inner barrel and create those cuts, will it otherwise fit a KJ hop-up unit? Is the rest of the arrangement of the barrel/hop-up/bucking the same? Will a TM 92 bucking fit a KJ hop-up? Etc. etc. Link to post Share on other sites
Deve Posted June 24, 2016 Report Share Posted June 24, 2016 There's effectively two series of KJW hop units/barrels for M9/92f/etc, one which replicates the original TM fixed hop and a later one of KJW's that is adjustable via a grub screw beneath the chamber (in the exploded parts diagrams, the new adjustable version has parts nos in the 80s series rather than single figures). If you have a look at some exploded diagrams online, you'll see the difference. It's been a while, but I think the newer KJW hop unit also used a VSR-style hop rubber, rather than the original TM/KJW cloned 2-part fixed hop chamber/bucking arrangement. So TM parts should work with older KJW (i.e. fixed hop) but not the newer versions (KJW adjustable). And the only thing with the new TM M9A1 should be the VSR bucking with newer KJWs......... Link to post Share on other sites
Guges Mk3 Posted July 4, 2016 Report Share Posted July 4, 2016 New KJW's are like TM VSR. Which one do you have? Link to post Share on other sites
mimesis Posted July 4, 2016 Author Report Share Posted July 4, 2016 Newer one. Link to post Share on other sites
Guges Mk3 Posted July 10, 2016 Report Share Posted July 10, 2016 Then use the VSR type...like Maple Leaf. Link to post Share on other sites
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