A reason we need magpul magazine caps

[Uni-Vibe]

I put two gen. 3 thirties together with the magpul clamp. Loaded them up to 30 rounds. Stuck it in the gun and threw it into the trunk.

A few days later I looked again: the unused mag's top round had worked itself loose and was protruding. In a shoot-storm this could be a problem.

So I put the magazine cover on. Now no problem

[MorphCross]

Another option: https://www.brownells.com/magazines/...prod27533.aspx

Or you could go the LAV route and use duck tape and cardboard to make your mag coupler. The flexibility keeps the rounds from jumping out under recoil.

[mack7.62]

Or you could just run a D60 for your initial load out.

[hk_shootr]

Many of the MagPul mags I have pop the cover off after a few days if left full.
I down load mags by two now, solved that issue

[rebelram]

The top round of any mag can become dislodged depending on what it comes into contact with. That being said I have a couple loaded Lancers in my truck that haven't lost a round or had any rounds that moved. They are stored in a bag that doesn't move or bounce around in my truck.

[Tx_Aggie]

Or you could use a Redi-mag to hold the second magazine instead of a mag coupler.

ETA, MorphCross beat me to it:

Another option: https://www.brownells.com/magazines/...prod27533.aspx

Or you could go the LAV route and use duck tape and cardboard to make your mag coupler. The flexibility keeps the rounds from jumping out under recoil.

[Arik]

Or you could just secure the mag and not have it roll around in the trunk

[Uni-Vibe]

Or you could just secure the mag and not have it roll around in the trunk

It was plugged into the rifle.

[Inkslinger]

Or you could just secure the mag and not have it roll around in the trunk

Or skip that coupled together nonsense, this ain’t Nam.

[Cokie]

I’ve noticed pmags have a tendency to let rounds cross or pop out more than GI mags or lancers