M&P 40 (rail on top) question

[I-Toon]

I'm buying a M&P 40 soon. I know it has a built in rail underneath. I want to mount a reflex red dot sight on it. Is it difficult to mount a weaver-style rail on top?

 

[handgunner356]

It wouldn't be hard to mount a rail, but I would question the reliability considering the slide velocity of the 40. I would be more inclined to find a scope mount that attaches to the lower rail and come out around the slide so it stays fixed to the frame.

 

[alphabrace]

I don't know how to mount a rail but if you go to the Gabe Suarez site Warrior Talk Forums there will be information on the relfexs sights used on pistols.
I don't think they use a rail but mount right to the slide. I know he has
done it with glocks and I believe M&P's. The site has much info to offer.
BTW I have a 40 and really like it with my XS big dot sights. Another
way to go for quick acquisition if that is what you are after.

 

[agksimon]

Is this what you're looking for?

It looks like it replaces the rear sight.

Leupold DeltaPoint Reflex Sight

 

[I-Toon]

Is this what you're looking for?

It looks like it replaces the rear sight.

Leupold DeltaPoint Reflex Sight

Exactly what I was looking for, but I found one about $300 cheaper. The Browning Buck Mark reflex sight is only $60, but it mounts to a picatinny rail. One Source Tactical http://www.onesourcetactical.com/technicalservicesdivision.aspx modifies slides for various red dot sights, but I'll do more research before I spend my money.

 

[alphabrace]

Good luck with Botach. I would make sure they have it before you order from them, if you do.

 

[IraIII]

Sig makes a bridge mount that mounts to the under lug, and surrounds the barrel and slide. It only fits the sigs, because they have a rounded rail, but I bet with a little dremel work it could be done. Heres a link to it at Topgun Supply $129 and it comes with a red dot.
Sig Sauer Red-Dot Sight with Bridge Mount - Top Gun Supply

 

[agksimon]

Exactly what I was looking for, but I found one about $300 cheaper. The Browning Buck Mark reflex sight is only $60, but it mounts to a picatinny rail. One Source Tactical One Source Tactical - Technical Services Division modifies slides for various red dot sights, but I'll do more research before I spend my money.

I have a Browning reflex sight and it works fine on my 22, but don't know if it would stand up to the battering that the slide movement would give it.

 

[I-Toon]

I'll research the Burris Fast Five II 4 MOA dot. It costs about $200. Maybe I'll put a Buck Mark reflex sight on a M&P 15-22.

 

[Deadeye Dick]

I think you would be better off with some type of bridge attached to the frame of the pistol not to the slide. Mounting a scope directly to the slide will increase it's mass and will likely effect reliability as well as ware. Not to mention that I doubt many scopes are designed to withstand the forces that would be placed on them by the slide slamming back and forth.

 

[kend]

It wouldn't be hard to mount a rail, but I would question the reliability considering the slide velocity of the 40. I would be more inclined to find a scope mount that attaches to the lower rail and come out around the slide so it stays fixed to the frame.

Here's a thread on our prototype which is exactly what you described, we should have these ready, with several different interchangeable mounting bases, in a couple of weeks, maybe a tad more.

M&P optic mount - Brian Enos's Forums... Maku mozo!