FX Crown, how to prevent shroud from extending

I commonly get emails asking me if there's a way to prevent the FX Crown shroud from moving after installing a moderator. A lot of people are not familiar with the option to lock down the shroud so I did a quick write-up of how to install the 1/2 x 20 adapter as well as how to lock down the shroud.

First you'll need a needle nose plier or dowel pins that fit into the two holes on the front cap. I am using a pair of jewelry pliers.

With one hand hold onto the shroud, the other holding the pliers, gently press inward then turn counter clockwise. It should come off without much effort. Once it loosens, use your fingers to continue unscrewing the front cap from the shroud.

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Next you want to remove the shroud from the rear cap. This is so you can lock down the shroud so that it doesn't move forward after screwing on a moderator.

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After removing the shroud, it will reveal the bushing that limits the shroud's extension. You'll also notice that it has an alignment pin. The bushing is held in by a 2.5mm grub screw. Use an allen key to loosen it.

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On the front of the rear cap, you'll see a pin hole for the alignment pin. push the bushing back and make sure the alignment pin sits nicely into the pin hole. Tighten down the 2.5mm grub screw

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Once that's done, screw the shroud back on then screw on the 1/2 x 20 adapter and you're done.

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thanks for the pics and info..now the picture with the silencer on the gun...I was wondering what it looks like ..the crown is a sweet rifle and the looks are cool..are different size silencers available as well?

the gun 25cal stock is a little loud..with the shroud extended helps but not perfect..shoots better with shroud not extended..in my opinion.
 
Even if you add the small Tanto, it will muffle up the front however if you have your gun set to Max power you'll definitely hear more of the hammer slap. Reduce it to level 4 or 5 and you'll notice the difference. My .25 Crown was shooting around 920 fps on Max, when I lower it to level 5 it was shooting around 885. Mechanically IPO guns shooting over 900 fps you will hear a louder hammer and people confuse that with the muzzle blast. It just makes sense that the hammer has to hit harder to open the valve longer for more air to get out.
 
If you want to return the barrel to stock configuration, is there a mark on the barrel to indicate where the factory location is for the locking collar?

Thanks!

No, but you can probably see the mark left by the grub screw, Put it anywhere and try it. Different locations will change the harmonics when extended, might find a location that gives better accuracy than others.