Colt 7.62 Factory Upper...

…Ok, got a friend who may part with his upper and think it comes with two mags.

Do I want this?? I’m not sure why I got the itch but kinda has my interest perked.

Anything I need to know or consider with this round regarding reliability / parts / etc?? This would be my first 7.62x39 and don’t even have ammo to shoot in her.:eek:

IMO the only negative is the lack of good mags.

:cool:

Yep, they’re tough to find.

The solution to this issue, at least MY solution to it, was to get one of the MGI “hydra” lowers. It takes AK mags. I use that lower for both my 5.45 and my 7.62x39 uppers.

Here’s a link:http://www.mgimilitary.com/store/index.php?main_page=product_info&cPath=1&products_id=31

OK…bringing this back up to the top.

I picked up the upper today and to my surprise this is a rifle configuration with a 20" bull. Has a flat top with screw on handle and A2 sight.

I was expecting a carbine…can anyone confirm if this was a cataloged item??

from http://biggerhammer.net/ar15/variants/

thanks amigo…good stuff

$500 for a stripped lower? Thats insane.

A few items - yes - they sold a factory 20" “conversion” The rifle only came with a 16"(lower marked 7.62x39). CDNN had these new years ago, during the AGB for like $399 or something rediculous.

Big issues were mags and much less was firing pin penetration and extractor breaking. There was a USA brand(normally hideous) franken mag which looked like a combo of a an AK mag and a 20rnd AR mag all made out of flimsy steel that worked fairly well. The C-Products mags seem to work well.

Firing pin issue was handled by either filing down a bit off the back of the bolt - never had to myself. Also never had extractors breaking - but that is the also one of the “dont use wolf ammo” tales of long ago.

As for the MGI hydra, it wont work unless you mill out some of the inside of the upper and lower ramps of the bcg. Micheals Machines used to make an “AR-47” that excepted AK mags and for a fee he would mill-out you upper and bcg. Used to be directions on the web somewhere for those brave dremmel warriors.

Benefits of the MGI hydra are realized with their quick change barrel upper and their 7.62x39, 5.45, 5.56, 9mm, etc mag well changes.

I have had decent results with the C-Product magazines for the 7.62x39 if I only load them to 25 rounds.

How are you liking that lower? Thinking about using it for a 7.62x39 build.

How are you liking that lower? Thinking about using it for a 7.62x39 build.

I only have the 5.56 and 7.62x39 mag convs for the lowers and a spare 5.56 with a modified bolt catch release for a shrike upper.

With the 5.56 conv, not a consistant bcg hold back on a empty mag.

The only issue with the 7.62x39 conversion I have come across is it being tight with the Bulgy Circle-10 mags that are a bit tight.

Overall like it.

Been shooting this “conversion” 16" for 15 years… love it and get by with the Factory 5 round magazines. Total capacity 6 rounds if you single load the first and jam the magazine in. Accuracy is very good and power is right. I would love a ten round 100% reliable magazine, or 20 round…

Is the flat top rare? Ive only seen a1’s.

My Colt conversion kit: R6850DC only shows it being made in a flat top version.

http://www.biggerhammer.net/ar15/variants/

Look there for some great information.