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CZ LONG ARMS => CZ Scorpion EVO => Topic started by: ad5md on April 12, 2019, 10:55:51 PM

Title: Manticore 32 rnd mag issue
Post by: ad5md on April 12, 2019, 10:55:51 PM

I haven't shot the evo in a while and planning a trip to the range tmw, I loaded the mag with just 30rnds.  Upon testing I noticed that the magaxine won't lock with the bolt closed.  Has anyone experienced this?

Title: Re: Manticore 32 rnd mag issue
Post by: Grendel on April 12, 2019, 11:15:39 PM

Same with my AR - unless you really rap on it hard.

Title: Re: Manticore 32 rnd mag issue
Post by: Hemiscorpius lepturus on April 13, 2019, 12:29:31 AM

Fairly common with most magazines in pistols and rifles, the spring pressure increases with each round loaded, eventually it will be high enough that the force to move the round down to lock the mag will exceed that provided by the weight of the weapon.

The higher the cyclic rate, the higher the base spring force must be, and the scorpion is quite high. At 30 rounds, the force is MUCH higher, I never load my mags past 25 anymore. If you set the mag on a hard surface and press down on the gun it will lock.