I recently picked up a 3x20 Colt scope and went to install it onto one of my Brownells A1 uppers and it did not fit. So I tried it on my other Brownell upper and it did not fit it either.
So I tried the scope on my 1984 SP1 rifle and it fit, as did it fit on all my other uppers and carry handles I own.

I guess the Brownell A1 uppers are to narrow for the scope to fit down into the carry handle channel. I just wondered if any one else ran into this before?
I will not be turning them because I already Norelled them in  Blackish grey. Not much I can do I am not wanting to alter the scope or upper.

Could it be caused by the paint thickness? Let's say if it was already anodized to a tight fit, but with the paint it became excessive?



Is the screw on the side of the scope protruding any?



 

Return them or sell them lol

the channel for the scope mount is probably cut too narrow.  NDS had some blem 605s that happened to a few years ago.

That's disappointing to hear

I would like someone else to try it on their upper. I have Norelled my uppers so I don't know if that is why they don't fit.

Nope, they are too narrow.

I've tried mounting a 4x20 scope and a gooseneck mount to both of my Brownell's A1 upper and neither would fit.
Both the scope and gooseneck fit perfectly on a Colt detachable carry handle and a Fulton Armory slick side upper.

I tried it on my first upper, which had been coated in Norrell's, then a second upper fresh out of the box. Neither fit.
Using my calipers, I measured the channel on the top of each, and both are .5" near the sight, then progressively get narrower going forward down to about .475".

I like my Brownell's A1 uppers, but, the more I compare them to others, the more I am finding wrong with them.

Well crap!!!!!! I was almost hoping that it was the molly resin was to thick..... I had plans to build another one around that Colt scope.
Oh well maybe a Fulton or a real deal Colt now for my build.

Both of my Brownell's uppers run like tops. It just seems they missed the mark on the little things. (top channel too narrow, takedown lugs too wide, my port doors don't cover the whole ejection port....etc)

The Fulton uppers have much better machining then the Brownell's, but, my only gripe is they didn't anodize them. They are Cerakoted.

Now I know why Nodak Spud is always out of stock!

I have a few of the Brownells A1 uppers I haven't used yet.  After reading all these complaints I'm really bummed.

Has anybody contacted Brownells yet?

I'd like to know that also ...

Having second thoughts about them now....

I'm still not sure what the deal is with the Brownells uppers. I bought one because I have a black retro commercial build that had a C7 upper and I wanted a black upper without the brass deflector. It sat around and I never got around to swapping it, then I read the thread about fitment with Anderson lowers issue. Sure enough mine wouldn't work with any of my lowers....5 different manufacturers.

Not slamming Brownells but mine just wouldn't work. The rear pin wouldn't go in at all with any of my lowers. Maybe I got a bad one because others say theirs worked fine. Brownells did say they have a 100% guarantee so mine went back and I'm waiting on a refund.

I will buy from them again because this is the only issue I've ever had with their products and its great they stand behind their items with such a great guarantee.