Red Dot Mounting Preference + Cowitness

[Ducman69]

I purchased a Bushnell TRS-25 Red Dot, and first mounted it towards the front of the factory rail about centered over the magazine of my PLR-16.

This seems to work fine, but renders the rear iron sight useless. The TRS-25 has a little deal on the bottom right corner that prevents cowitness (noob to these type of sights, but I understand that to mean that in the event the battery is out or whatever, you can still shoot just fine using the irons).

I found however, that if I mount the red dot in place of the rear iron sight at the very back of the rail, and relocate the rear iron to the front of the rail, the irons can be very easily seen through the glass. This would also seem to make the gun less nose heavy.

Can someone explain why this is a good or stupid idea?



PS: As a homebody, my TRS-25 is not likely to get damaged or run out of battery, so should I even bother with having backup irons and just pull em off? Thoughts?

 

[Ducman69]

This is the sight picture (sorry dot was turned off):

 

[il_10]

It's a fine idea. If it works, it works. You can use your dot, you can use your irons, and you say the balance is better. What's not to like?

To address your second question: Irons are good to have. It's a homebody now, but it's a nice little setup that'd do fine for a bug-out or HD situation. There's never a good reason to give yourself less choices.

 

[wally]

I'd just move the rear sight as close to the red dot as you can and still get a good view of it to maximize the sight radius. Make sure you re-zero the irons after moving them.

 

[Ducman69]

Done and done.





That's about as far back as I could move the rear iron before the bottom little "hump" in the RD optic starts to obscure it.

 

[wally]

Looks like a winner. I assume that with your eye the red dot sits right on the aligned sights
when you look through that lower third to use the irons. Its the co-witness arrangement I prefer, but not all inexpensive red dots are parallax and distortion free enough for it to work.