Questar's RRA 9mm upper/lower combo... I got one!

There is nothing wrong with the RRA 9mm platform.
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The is a Hahn block. Notice the feed ramps.

The Hahn feed ramps are certainly prettier, but all that necessarily means is that they're over-engineered. My RRA mag block feeds first time every time, has done over a thousand rounds with perfect function. I use the RRA plastic 30/10 rounders. My upper is a Colt.

As for the guy who has "decided to avoid all RRA stuff completely" on the basis of some internet posts (he doesn't even own anything by RRA!), that's silly. RRA stuff works fine. If you're unhappy with your mag block, send it back for repair / replacement. As soon as you start bending and dremelling, you're on your own as far as support from the vendor.

Maybe your mag catch is off spec? Maybe the mag block is off spec? Maybe your lower is a bit off? Maybe the mags aren't quite right? Maybe all four, and you have fallen victim to tolerance stacking. You just don't know - so call the vendor.
 
the 10 round steel mags are junk. hate to say it, but the older plastic mags are much better.

mine runs 100% with all 6 of my plastic mags. i had both the first and second generation C-Product mags, and neither would run.

before you smith the gun, run different mags.

i could meet you at POCO during the holidays and we can swap mags and see what happens.
 
The Hahn feed ramps are certainly prettier, but all that necessarily means is that they're over-engineered. My RRA mag block feeds first time every time, has done over a thousand rounds with perfect function. I use the RRA plastic 30/10 rounders. My upper is a Colt.

As for the guy who has "decided to avoid all RRA stuff completely" on the basis of some internet posts (he doesn't even own anything by RRA!), that's silly. RRA stuff works fine. If you're unhappy with your mag block, send it back for repair / replacement. As soon as you start bending and dremelling, you're on your own as far as support from the vendor.

Maybe your mag catch is off spec? Maybe the mag block is off spec? Maybe your lower is a bit off? Maybe the mags aren't quite right? Maybe all four, and you have fallen victim to tolerance stacking. You just don't know - so call the vendor.


when i said i was going to avoid RRA completely, its just simple to me, if i start to hear bad things about "very expensive" toys, that dont function the way they should right out of the box. its not worth my time to try. maybe i jumped on to early saying that. because if mark at questar comes on next monday or so and gives a fix that takes 2 mins . i will rethink my statement then.. sorry i wasnt trying to be silly or bash RRA. and i will hold all comments until i see what questar does. and im sure they will make everyone happy.

and i havent heard of anything wrong with there 5.56 varients. its just that i am in the market for an AR, they arent cheap and i was very interested in RRA, this thread is just turning me off. but i will wait and see what prevails.

btw, the hahn to me looks like its had some thought put into it, apose to the rra one. sometimes over engineered is a good thing.

wheres a place to get this hahn part ? because i doubt you will be able to get one out of the US.

btw, are there any other 9mm mags you can get besides the new short 10rd ones questar sells . what happend to the longer ones rra used to have ?
 
I'll try mine out as soon as I can in the near year. At least its cycling dummy rounds perfectly now. I figure I can order a replacement mag catch from Questar in the future, only takes 30 seconds to change it anyway so a little rework didn't concern me much.
Questar also includes a note with the 10 round mags saying they may need a little sanding to fit right. Mine fits great right now and locks in with a nice snap. That could change if I need to adjust the magwell.
For the price everything really should drop in smoothly, as long as it all works in the end I'll be happy though.
This is my first AR so I don't have any other parts to swap and I'm learning as I go.
I'd love some of the 30 round plastic mags(pinned to 5 or 10) but finding them is not easy. Its also nice to have mags which support locking the bolt back after the last round.
 
I have 2 of the steel 10 round mags that I use in my colt AR and they fit and function fine accept. the bolt won't stay open after the last shot. it just deosn't seem to catch.:confused: so I switched out one of my followers from one of my colt mags and it works fine:confused: any ideas guys?
 
The best mags out there are 32 round Colt, of course you have to have them pinned to 5 rounds but they are far better than Pro-Mag (RRA) and C-Products mags.

Especially the pre-ban Colt mags with steel followers.
 
The bolt not going far enough to eject, that would be a rifle recoil spring instead of a carbine spring! Retract the bolt mannualy and see how far it actually goes back.

Scott
 
the 10 round steel mags are junk. hate to say it, but the older plastic mags are much better.

mine runs 100% with all 6 of my plastic mags. i had both the first and second generation C-Product mags, and neither would run.

I'm very confused because we never sold any "first generation" ten round 9mm mags from C-Products. The original design that they supplied for testing did not function properly and was rejected. If you got some of those I'd really like to know from where :confused:

All of the 9mm ten round CP-LAR15-9MM-10 mags that we've imported and sold are from the same "batch" so there is no "first and second generation" that I'm aware of.

Where did you get your magazines and what makes you believe you got "first and second generation" mags?

Mark
 
We did find an issue with the 10 round 9mm CProduct magazines and for that reason we included a notice with shipments...

We only found this to be a problem in a small number of uppers and it was because most of CProducts testing had been done with/by Colt and when we tested with RRA we found the mag lips were a bit "wide" on a small number of guns we tested. It affected the drop free function more than anything else and was easily fixed when required (see below).

Regardless of magazine type, 99% of feeding and cycling issues relate to the magwell block and in the case of the RRA magwell block are fixed by adjusting the height (position) of the block in the magwell. It can be finicky finding the right spot... but once you do they work great.

I have one of the RRA 9mm's (with the RRA Magwell Block) and I run a variety of magazines including the CProducts 9mm 10 round mags, and it works reliably and the mags work great.

I've read a number of posts here in this THREAD where people are talking about issues they're having, but I haven't seen any of these people actually contact Questar to ask us to help resolve anything... if you have a problem then contact us by email.

CProducts_9mm_Mag_Issue_2.jpg
 
can we bring back those plastic RRA mags?

The cost for us to have those made was just not feasible.

I can get you 5 round versions but that's not what everyone wanted, and even then it's costly to have someone "pin" mags by hand and manually test each one to insure that they've been properly "pinned" and won't hold too many rounds by mistake.

Mark
 
9mm Mags

can we bring back those plastic RRA mags?

I'm thinking group buy? maybe if they run well in my 9mm. I would like to make some "extensions" on the current C-products mags or use magpuls if that was feasible?

Good work Mark, and I'm sure we can engineer a fix to give us 9mm AR folks the full length, and the 10 rd capacity.
 
I'm thinking group buy? maybe if they run well in my 9mm. I would like to make some "extensions" on the current C-products mags or use magpuls if that was feasible?

Good work Mark, and I'm sure we can engineer a fix to give us 9mm AR folks the full length, and the 10 rd capacity.

I have a couple 5/20 round colt mags that I would love to see some ten rounders that size.
 
I've read a number of posts here in this THREAD where people are talking about issues they're having, but I haven't seen any of these people actually contact Questar to ask us to help resolve anything... if you have a problem then contact us by email

Email sent but it said you might not get it until after the 5th of Jan.
 
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