Ak74 mag fitting

[bodiebill]

Bulgarian AK74
Mags do not fully seat and feed.
Center support bar prevents mags from fully seating and bolt does not strip cartridge to chamber round.
Some mags with higher fit function part time then jam as bolt over rides cartridge.
Should I file center support bar for less interference with mag?
Any tips are welcome.

[socom2shooter]

Can you post pics? I would not do anything to you center support yet. Look at the lower rails first. Those are normally what puts the most tension on a magazine, if they haven't been trimmec enough. Im not even sure its possible for a magazine to hang up on the center support, but i could be wrong.

[bodiebill]

Lower rails? Do you mean the dimples of the receiver? Will post pictures as soon as I learn to attach them. Can you advise how to attach pics

[Cheezle56]

Was it an AK builder flat? Yes file the center support.

[ar15barrels]

Should I file center support bar for less interference with mag?

Yes.
The mag needs to pivot up freely until the tab reaches the magazine stop.

[ar15barrels]

Lower rails? Do you mean the dimples of the receiver? Will post pictures as soon as I learn to attach them. Can you advise how to attach pics

The rails are the two pieces that are welded into the receiver.



The upper part of the rails keeps the bolt from rotating while the carrier is moving in the reciever.
The lower part of the rails acts as additional support to the SIDES of the magazine.
The lower rails do the same thing as the receiver dimples, just further up inside the gun.

[Fern]

I know you have to trim the lower portion of the rails on the 47, so I am assuming you would need to for the 74.
My guess is the lower rails need to be trimmed down some more to allow the mag to be fulling inserted.

[762x39]

I know you have to trim the lower portion of the rails on the 47, so I am assuming you would need to for the 74.
My guess is the lower rails need to be trimmed down some more to allow the mag to be fulling inserted.

The lower rails are made long enough to fit the thinner 74 mags. They only need to be trimmed to fit the thicker 47 mags. Same thing with the ejector.

OP
Correct OE style center supports have a flat spot on one side specifically to clear the mag. Re-orientate the center support flat spot to the front or file a flat spot if you are using aftermarket support that does not have one.

[ar15barrels]

The lower rails are made long enough to fit the thinner 74 mags. They only need to be trimmed to fit the thicker 47 mags. Same thing with the ejector.

LOL.
Tell that to AK-builder.
Both types need trimming.
47's just need MORE trimming.

[SVT-40]

The lower rails are made long enough to fit the thinner 74 mags. They only need to be trimmed to fit the thicker 47 mags. Same thing with the ejector.

OP
Correct OE style center supports have a flat spot on one side specifically to clear the mag. Re-orientate the center support flat spot to the front or file a flat spot if you are using aftermarket support that does not have one.

The only center supports with the flat spots for clearance are the .223 rifles. None of my 5.45 AK-74's have a flat on their center supports.

[valley82]

The only center supports with the flat spots for clearance are the .223 rifles. None of my 5.45 AK-74's have a flat on their center supports.

None of my 74 center supports had to be trimmed either. Lower portion of the rails, yes.

[762x39]

LOL.
Tell that to AK-builder.
Both types need trimming.
47's just need MORE trimming.

I know Curtis very well and have since before he even opened the doors of AK Builder. I did some Beta testing of his first AK flat bender and also turned my AK TG riveting jig over to him to produce when the orders started coming in faster than I could make them in my spare time. That was @ 10 years ago and He has been selling them ever since

Curtis has sold rails from various sources over the years, so I do not know which ones you are referring to, I am talking about the ones from Kvar.

[javithewrench]

Does your mag catch fully lock onto the mag? I had to replace one of mine not locking the mag in place, it was too long. Replaced it and now she works flawlessly.

[baih777]

OP,
you need to post pics of the front of the rifle, pics of the extractor tip, pics of both lower rails, pics of how the mag fits where the mag latch area.

if it is the lower rails, they are a universal fit.
they were suppose to be trimmed before spot welding into the rifle. fixing that is a challenge with basic hand tools.

[Lingwendil]

The only center supports with the flat spots for clearance are the .223 rifles. None of my 5.45 AK-74's have a flat on their center supports.

The original center support on the Tantal (5.45) has a flat ground into it from the arsenal, on every single original receiver chunk I have ever seen they were this way.