And the calibers allowed

Theres no caliber restrictions

Not sure what clip material I have rn

@HUNTER4639 FN Five-seveN mags can be loaded the same way as most rifle mags.

Oh really? Good to know

Not that I'll be shooting one anytime soon 🤣

how else would you load a mag if you don't load it from the top?

You push down the spring and load from the front

Only pistol I can think of that's got a double-feed mag. They shoot nice and the easier loading mag makes 'em almost worth having even if the ammo performs like .22 WMR.

Nice

do you mean double stack? because double feed = jam

Right. AR15, AK, etc. you push the round straight down into the mag between the feed lips. Most pistols, you've gotta depress the spring a little and slide the round back under the feed lips.

Double feed is a name for a jam, yes, but there are single and double feed mags. Former feeds only from the center, latter feeds from either side, alternating.

only time you have to push down on the follower and feed it under the lips is on a single stack mag

single and double stack

damn near every pistol made today is a double stack, the 1911 is about the only single stack mag except for ruger 22's

Only double stack pistol that you don't have to slide back is the Five-seveN. Everything else I've ever seen that's double stack only feeds from the center.

Glock

S&W M&P

2011 1911

virtually all double stacks

All double column (double stack) single feed magazines. Got to push down and then slide back.

all magazines are single feed

Nope. AR15, AK, etc.

every magazine on earth is a single feed

Nope.

http://www.uzitalk.com/forums/showthread.php?67320-Single-Feed-Magazines-vs.-Double-Feed-Magazines

lol ok

do you know what a double feed jam is?

Look at the feed ramps in an AR15 upper. Got one on the right one on the left. It feeds from both sides. Double feed.

Yes, this is the same phrase used to talk about something else.

feed ramps? the feed ramps are on the receiver, not on the magazine

M4 feed ramps and non M4

Yes. And there are two feed ramps, M4 or non, because it's a double-column double feed type magazine.

It feeds from both sides, vs only feeding from one side or the center.

the only feed ramps on any AR are on the upper receiver

and they are M4 or none at all

the magazine has lips

and it's a double stack magazine

Right. But the feed ramps on a firearm have to be designed to accomodate the magazine design, yes or no?

it feeds left and right, hence why your feed ramps are on both sides of the receiver