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Posted: 10/21/2005 1:09:36 PM EDT
Which block is better in your opinion or experience?
These new rifles are coming out with both types?
Pros / Cons?
Link Posted: 10/21/2005 2:30:22 PM EDT
Pics to please.
Link Posted: 10/21/2005 4:52:20 PM EDT
[Last Edit: 10/25/2005 1:36:57 PM EDT by eklikwhoa]
mine has the pinned block and i have yet to have any problems with around 4k rounds through mine since i got it about a month ago.


Link Posted: 10/21/2005 4:55:39 PM EDT
Link Posted: 10/25/2005 12:44:56 PM EDT
Thank you.
Link Posted: 10/25/2005 1:35:48 PM EDT
i dont get it?????//


so which one is better?
Link Posted: 10/25/2005 3:08:45 PM EDT

Originally Posted By eklikwhoa:
i dont get it?????//


so which one is better?




The world may never know.
Link Posted: 10/25/2005 3:47:17 PM EDT
Pinned in block......NO conversion to 5.56mm, weak 9mm bolt hold open, COLT factory product, or drilling holes in a receiver.

Adapters......aftermarket hardware ranging in quality and options to suit your needs.

For some people it can only be the factory Colt.....but IMHO Colt is overrated, overpriced, and of second rate quality. Sadly the days of Colt making a good Python, Gold Cup, SAA, and AR-15 are long gone. You can assemble a superior AR-15 9mm if you choose your hardware carefully. Your expense will easily come under what you would pay for a Colt factory rifle.

I highly recommend buying factory Colt magazines and Wolff Springs if you have problems. They work the best and you can abuse them for years. Avoid plastic ProMags, even though they are cheap (in the short run), they can't be trusted and don't last.

I run a Bushmaster lower, Rock River 9mm hardware, Hahn Top Adapter (suprise!), and other custom hardware.
Link Posted: 10/26/2005 5:20:26 AM EDT
my colt pinned lower uses the std ar15 bolt hold open
Link Posted: 10/29/2005 4:39:26 AM EDT
I've got 3,300 rounds thru myColt AR6450 that I bought 5 months ago all without
a problem. Mine has the new style 2 pin block which apparently allows for the use of
the std bolt hold open.

I have not seen the screw in type mag block from a factory Colt before, it would be nice
to switch calibers though. But that's what my AR6520 is for.

That lame Colt quality, I haven't sent it back to the factory yet. My Bushmaster Patrolman's
carbine that I used to have was sent back, because it needed 12 clicks of windage to sight it in at 25 yards.
Link Posted: 10/31/2005 2:57:15 PM EDT
I have a new pinned 6450 and it runs just fine. It is my third Colt pinned lower 9mm. I like that it is pinned. No conversion device. Fool proof. Dedicated and proven.
Has anyone had trouble with these?
Link Posted: 12/29/2005 5:17:21 AM EDT
I got mine on 09/14/2004 for $894.00.

It is a LE marked lower and has the screw in the bottom with two pins. The earlier 9mm's had three pins.

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Link Posted: 12/29/2005 5:27:19 PM EDT
If you don't plan on changing calibers, the Colt Pinned block will serve you well. If you want to change calibers, look into a different set up (I prefer the top loading blocks).
Link Posted: 12/29/2005 6:58:02 PM EDT

Originally Posted By Colt_SBR:
I got mine on 09/14/2004 for $894.00.

It is a LE marked lower and has the screw in the bottom with two pins. The earlier 9mm's had three pins.

OK - Do tell where you got it for that price?

Thanks in advance!

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