Colt Canada MRR 18

OldFrankHog said:
Maybe the gas port is just smaller. I don't have one to compare but I'm sure CC knows what they are doing.
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Yes, that's what timing is in DI system, as dwell time increases the gas port diameter is made smaller. But to make it cycle reliable with different ammo brands and bullet weights, they over-gas it by design.
 
BlackVoid said:
I'll just add my 2c.

Rifle length system is preferable if you can get it, and on 18" barrel there is no reason not to have one. CC is just cutting down production costs or plain being lazy.

Nothing wrong with properly timed carbine length either, your BCG parts will get a bit more wear, but unless you are planning on shooting 5000 rds per year, that is a non issue. Oh, and and a lot more gas in the face as carbine length system is over-gassed.
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I think it's done to streamline the parts required between the mrr line up. Thus causing less parts to be stored and supplied to the end customer.
 
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