Magpul BUIS Stiff?

[Nguyen]

I got an authentic Magpul BUIS gen 2 and when i try to change the aperture its really stiff. Like, i have to use my nails to separate it and flip it to a higher aperture. Is this normal? Also, after I flip it the large aperture still wiggles back and forth (barely though).


Heres the video I recorded:

http://www.youtube.com/watch?v=Ao4LhVXXWFE&feature=youtu.be

Easier to show than explain.

[hojo808]

That's no bueno, I'd send it back

[miron721]

Mine's super stiff as well, but I don't have that play with the larger aperture. I had to use a tool to change it the first few times, but it wore out a little. Before, I had a 50/50 chance to either separate the apertures or drop both down.

The play in the aperture is concerning, though.

[pterrell]

As far as the stiffness, try a little WD-40 or clp. Mine was super stiff like that and I gave it a little WD-40 and its significantly better. The play... I'd send it back.

[YZINGERR]

Mine is not stiff. I have the real ones on my AR and some PTS ones on my shotgun. Neither are stiff or have play at all!

[SonofWWIIDI]

Exchange it for another one. That play shouldn't be there. And it should be relatively easy to switch the aperture.

[OpticsPlanet]

I agree, I'd contact Magpul:

http://www.magpul.com/contactinfo.html

Mark H.

[kzink]

I happened to have my rifle out for a cleaning while i was reading this and mine too has that same play in it. Guess I will be needing to contact Magpul as well.