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Posted: 4/2/2006 11:54:52 PM EDT
I`ve got a Oly K9GL with a 16' barrel and I`d like to cut it down and was wondering if there was a optimum barrel length for the 9mm bullet?

Does it matter? 10',11' or 12'

Link Posted: 4/3/2006 6:16:02 AM EDT
My understanding is that a longer barrel will possibly make subsonic ammo supersonic... due to higher velocities of course. Most suppressed barrels seem to be in the 5-9" range. I have a 7.25" ADCO barrel and it's plenty accurate out to 50-75 yards and very quiet with the can on. If you aren't going to run a suppressor then sure those lengths would be OK. I like a compact PDW style 9mm AR, but that's just me.
Link Posted: 4/5/2006 3:05:25 PM EDT
I plan on going 10.5" on mine mostly because I like the look with the front sight tower.
Link Posted: 4/5/2006 4:04:54 PM EDT
It really is a personal preference and depends on your application.

I went with 8.5 for a number of reasons.
It is even with the front of a standard carbine 4 rail, balances very well, and will still be under 16” with a suppressor (depending on model). On the other hand I paid to have it short I wanted to go as short as possible but keep it useful without a suppressor.
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