Dragonfly Mk2
Dragonfly Mark 2.

Part 1
Part 3
Part 4
Part 5

This report covers:

  • Rear sight
  • Remove the front sight
  • Free-floated barrel
  • UTG Micro dot sight
  • The sight
  • Took my time
  • Summary

Today I’m going to show you how I mounted a UTG Micro red dot sight to the Seneca Dragonfly Mark 2 multi-pump rifle. There is more involved than you might imagine, so fill your coffee cup before we begin.

Rear sight

We know that the rear sight has to come off the rifle. A dot sight would mount to the rail on the receiver but then the rear sight would be in the way, plus the rear sight base seems like the ideal place to mount a dot sight.

Dragonfly rear sight
To mount a dot sight the rear sight has to come off the rifle. One screw (the elevation screw) comes out and the sight drifts off the dovetailed base.

However, if you do use a dot sight, the front sight is also in the way. The reason is, the dot sight doesn’t magnify anything, so the front sight is visible when you look through the dot sight at the target. And, when the dot sight is sighted in, the front sight will be right where you want to put the dot. So it has to come off for you to see where the dot is.

Dragonfly front sight
As you can see, removing the front sight entails removing the entire muzzle cap.

The Dragonfly’s front sight is part of the muzzle cap that also includes the barrel support.

Remove the front sight

There are two things to do to remove the front sight. First the threaded silencer adaptor has to be removed from the barrel. This isn’t the cap for the threaded adaptor — it’s the whole adaptor. So unscrew the larger knurled ring.

Next there are two Allen screws that hold the muzzle cap to the rifle. The front sight is a part of that cap, so the whole cap has to come off. Remove both screws and the cap slides forward, off the barrel.

Dragonfly front sight screws
After removing the silencer adaptor remove the two Allen screws that hold the muzzle cap assembly to the Dragonfly Mark 2.

Free-floated barrel

When the muzzle cap comes off it takes the barrel hanger with it. That turns the barrel into a free-floating barrel. Whether that is good or not remains to be seen when we test the rifle for accuracy, but if it’s not a good thing then you might have to kiss mounting a scope goodbye. However, since a scope magnifies the target, it might see past the front sight, meaning it can be mounted to the rifle once more.

Dragonfly free-floated barrel
By removing the muzzle cap, the barrel is free-floated. We will test to see if this is a good thing.

UTG Micro dot sight

I mounted a UTG Micro Dot sight on the rear sight base. It’s a small sight that seems to be adapted well to the Dragonfly Mark 2. The Micro Dot comes with a Picatinny base, so I had to add a UTG Picatinny-to-11mm adaptor to the base.

Dragonfly UTG Micro dot
I mounted the UTG Micro Dot on the Dragonfly Mark 2.

Dragonfly UTG Micro dot base
The UTG Micro Dot sight has a Picatinny base.

Dragonfly UTG adaptor
The Picatinny-to-11mm-adaptor is needed for the sight to fit the Dragonfly base.

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The sight

This is a new version of the UTG dot sight and has features I haven’t shown before. The viewing window is larger for starters. That makes the target quicker to acquire. And the battery fits into a sliding drawer that pulls out to the right side.

Dragonfly UTG battery
The dot sight’s battery fits in a sliding drawer on the side of the sight base.

Took my time

Normally I would just install the sight and then run an accuracy test, but as you can see, this job took longer than the average. Because of the high interest in the Dragonfly Mark 2 and also because of the extra steps that were involved, I thought it would be good to show you the whole process.


It took me a little over an hour to get the sight on the rifle. Now that you know what to do it should go quicker for you. Of course I don’t know if I did it right, so there is tomorrow’s report.