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1/25/2018 7:38:29 AM
Posted: 2/5/2006 11:53:18 AM EST
why does the 9mm pistol uppers i see have such obvious brass deflectors compared to that of .40, .45, 10mm pistol uppers? Those seem to use standard ar15 uppers.

what would happen if the 9mm upper had a regular .223 deflector?
Link Posted: 2/5/2006 12:06:03 PM EST

Originally Posted By elmo:
why does the 9mm pistol uppers i see have such obvious brass deflectors compared to that of .40, .45, 10mm pistol uppers? Those seem to use standard ar15 uppers.

what would happen if the 9mm upper had a regular .223 deflector?



Colt, RRA, and the others that make a 9mm use a slab side with the 9mm shell deflector. Olympic Arms is the only mfr (besides custom made jobs) of the .40, 45, 10mm. Oly uses a standard 223 upper and doesn't use the 9mm deflector on their uppers. They probably don't because it's cheaper to manufacture only one kind of upper receiver for all of their rifles.
Link Posted: 2/5/2006 5:50:59 PM EST
thanks for the response. SO it seems it's 'better' to have the deflector, but not manditory. I have the oly. .40SW myself with the standard .223 deflector.
Link Posted: 2/5/2006 7:49:55 PM EST
after thousands of rounds through my colt the deflector looks new.
Link Posted: 2/6/2006 12:02:33 PM EST

Originally Posted By eklikwhoa:
after thousands of rounds through my colt the deflector looks new.



Are you suggesting that it does not hit the deflector, and is therefore unecessary, or that they hold up well?
Link Posted: 2/6/2006 12:24:01 PM EST
FWIW, Colt called it a gas deflector, not a shell deflector. In case you don't know, it's not part of the upper itself, but a seperate assembly that can, if you want, be added to any standard upper. It consists of the large plastic part you see, a small spring and a half port cover. Brownells sells everything you need.
Link Posted: 2/6/2006 3:42:27 PM EST
it may indeed deflecy gas, but it sure as heck has never deflected any brass on mine


Link Posted: 2/6/2006 7:42:42 PM EST

Originally Posted By killingmachine123:

Originally Posted By eklikwhoa:
after thousands of rounds through my colt the deflector looks new.



Are you suggesting that it does not hit the deflector, and is therefore unecessary, or that they hold up well?



either its holding up very well or the brass isnt hitting it at all.
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