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larry v.
04-29-2011, 10:37 AM
Back in the late 70's I purchased a new Colt 1911 Govt. model, series 70.
Can someone tell me the main difference between my 70 series and the 80 series? My 70 has functioned flawlessly since I bought it. Thank you.

RealBarber
04-29-2011, 10:50 AM
the main difference is that the Series 80 has a firing pin block safety system

SAR_boats
04-29-2011, 11:01 AM
Series 70 colts do not have a firing pin safety system, series 80 does.

9mmepiphany
04-29-2011, 11:16 AM
Also the 80 series Colts did away with the collet style barrel bushing that defined the 70 series Colts

Steyrlp10
04-29-2011, 12:31 PM
Back in the late 70's I purchased a new Colt 1911 Govt. model, series 70.


Great investment -- don't give it up :)

bombadillo
04-29-2011, 1:38 PM
Great investment -- don't give it up :)

Truer words have never been spoken!

Colt
04-30-2011, 8:38 AM
Awesome pistol. Main functional differences are as said above, the bushing and the lack of firing pin block.

Yours is prettier too, IMHO...

Oceanbob
04-30-2011, 8:40 AM
The 70s series is the best IMO.

HPGunner
04-30-2011, 9:05 AM
I replaced the collet barrel bushing on my Series 70 with a solid bushing just to be cautious. I've read online that the collet bushing has had reliability problems. The last thing I would want is one of those collet fingers break off into the gun while firing. Never seen it happen first hand or met anyone that had this happen mainly because you just don't see them used anymore, but based on the stuff I read online, better safe than sorry.

HPGunner
04-30-2011, 9:06 AM
Great 1911 by the way. Definitely a keeper to be passed on to your family for generations.

9mmepiphany
04-30-2011, 9:41 AM
Never seen it happen first hand or met anyone that had this happen
I've seen several break. When they do, they tie up the gun and it needs to be disassembled to clear it.

There wasn't anything wrong with the fingers, the problem was that the front of the slide wasn't always machined square and that resulted in uneven pressure on the bushing from the barrel when locked up