CZ Scorpion Evo Lower movement?

Gunner84

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Just picked up a New CZ Scorpion Evo. I field stripped and cleaned it. Putting it back together I noticed there was a little movement between the upper and lower? Is this Normal? CZ Owners please chime in.
 
I sent a short video of this phenomenon to Wolverines and they told me its normal. their guns in stock did the same thing.

Basically when you pull the trigger it pushes the front end of the lower receiver down a mm or so. You can push it back in place, pull trigger it goes down again.
 
to put it in perspective, Swissarms have a bit of wiggle between the upper and lower receivers too.
 
I sent a short video of this phenomenon to Wolverines and they told me its normal. their guns in stock did the same thing.

Basically when you pull the trigger it pushes the front end of the lower receiver down a mm or so. You can push it back in place, pull trigger it goes down again.
Funny you say that! That’s exactly what I’ve noticed as well! The Lower won’t stay flush against the upper unless you push it up. It’s weird why CZ would create a loose tolerance for this carbine? What benefit does this have?
 
Funny you say that! That’s exactly what I’ve noticed as well! The Lower won’t stay flush against the upper unless you push it up. It’s weird why CZ would create a loose tolerance for this carbine? What benefit does this have?

A little wiggle typically translates into increased reliability, lets little grains of sand and debris that get into the firearm slip through and out, if things are too tight the grain of sand jams it up. A little wiggle and a little rattle is a good thing in a military style semi auto.
You didn't buy a precision target rifle, you want this thing to keep on chugging as it gets dirty from use and from contamination from your environment.
 
A little wiggle typically translates into increased reliability, lets little grains of sand and debris that get into the firearm slip through and out, if things are too tight the grain of sand jams it up. A little wiggle and a little rattle is a good thing in a military style semi auto.
You didn't buy a precision target rifle, you want this thing to keep on chugging as it gets dirty from use and from contamination from your environment.

That makes sense!
 
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