I am looking at one of these MI light mounts, to attach a Streamlight on my FSB.
Wondered if others have tried mounting lights in this area, and if this is a good solid place to mount, or if you found any significant drawbacks?
I am looking at one of these MI light mounts, to attach a Streamlight on my FSB.
Wondered if others have tried mounting lights in this area, and if this is a good solid place to mount, or if you found any significant drawbacks?
I do not mount anything to the FSB, ever.
Just make sure you Loc-Tite it and it should be GTG.
I do not see any problems with it.
Just curious, did you run into problems when trying to attach something there?
If I may ask, I’m interested to know your rationale for this?
what about a bayonet? do you ever mount a bayonet to your FSB?
Just remember to get the off-set mount.
David F.
i like the pivot mount. i go corner-shot style with my secondary AR.
remember, two is one and one is none
Here’s another option: GG&G’s SLiC Thing: side sling swivel on one side, and flashlight mount on the other.
I have the MI FSB mount and have never had any problems with it.
I’ve got two of them. One on a 9mm and the other on a 5.56 ar both with a G2 and weaver ring. Just use Loctite like The_Katar suggested, I did step up to red loctite after it came lose once.
-Jesse
You’ll want to use red locktite. Anything attached to the FSB will get hot enough under sustained firing to burn off the blue. Red will soften somewhat but should hold.
I have three rifles that all have a Surefire FSB clamp with Surefire lights mounted in them offset to the right. Two are Colts and one Bushy, never had a problem with any of them. The clamps are no longer in production but they usually can locate new/old stock. Part # used to be M25.
I use that same MI mount with a weaver scope ring holding a G2. I used blue Loc-Tite and on this past range trip the MI mount did in fact loosen up on me. The scope ring did not loosen, so I believe TheActivePatriot is right on: the heat will cause the blue Loc-Tite to let go.
Lots of folks around here use a FSB mount for a light. In my limited experience it appears to be the next best option behind putting rails on your upper.


98z28: how do you sling up? I didn’t see a front mount, nor behind the receiver.
Same here.
The only problem I see is the heat issue. Man that thing gets hot!
With one of these around the d-ring (that is an old picture): http://www.gandrtactical.com/cgi-bin/commerce.cgi?preadd=action&key=UWL&reference=/cgi-bin/commerce.cgi%3Fsearch%3Daction%26keywords%3D%26searchstart%3D0%26template%3DPDGCommTemplates/FullNav/SearchResult.html%26category%3DBFGE
seeing that light mounted there on that FSB, apeture perspective… a badguy crouched in a corner with a blaster would pretty easily fit behind the profile of the light. I don’t think i like that.
a lot of swat guys like to run heads up, or even muzzle down, now- the idea being the improved visibility outweighs re-zero speed during a dynamic entry. maybe that’s cause they’ve all got big ass flashlights stapped to their FSBs