Offset rail for BUIS?

[JelqMan2000]

Got a scope for my AR... but I have magpul BUIS... might as well have them both on the rifle and usable... I see everyone post about offset BUIS sets, but I found these pic rails that attach to the current one and add offset pic rails as well... Is using these with my flip-up BUIS a bad idea? Doesn't seem like many people are doing this

https://amzn.to/379vGNF

[enorbit3]

did u already mount the scope? Warne sells a mount with the offset rail built into it. Personally id go with a trusted name versus something cheap off amazon. It may be fine for a range toy but I try not to put cheap crap on any of my weapons. Buy once/cry once.

EDIT: arisaka, Daniel Defense, GG&G make offset pic rails. Id suggest those over the amazon specials

[enorbit3]

and if u already have a scope mount, check these out.

https://www.brownells.com/search/index.htm?k=picatinny+rail+offset+mount

[NorCalRefuge]

Magpul does have an offset version of the mbus pro's. You could pick up a set of those and use your current ones on your next rifle

[JelqMan2000]

Magpul does have an offset version of the mbus pro's. You could pick up a set of those and use your current ones on your next rifle

Always the most tempting answer

[DrewTheBrave]

Those mounts are cheap, no guarantee that they'll hold up to any sort of abuse (which is typically when you'll need a backup sight in the first place). Optic mounts are not an area that I recommend going cheap, as their only role is keeping your aim on target. If the rifle is for a range toy only, then by all means go ahead and try the cheap stuff - just don't be upset if it causes you more trouble than you bargained for.

I usually prefer to mount the MBUS normally, as they tend to fit underneath most scopes & mounts on an AR platform. Then just keep a handy tool in the grip in case you need to remove the scope for any reason. If you expect to need to change optics in a hurry, you can always spend extra to get a quick release scope mount from LaRue, ADM, Bobro, etc. and have confidence that you can remove & return to zero close enough for government work.

If this is something that you plan on using for serious tasks (home defense, hunting, competition, etc.) then I would recommend getting a quality set of offset sights like the MBUS Pros, or get a Warne RAMP mount and put a quality micro red dot (Aimpoint, Holosun, Primary Arms Advanced) on the 45 degree mount.