Posted: 12/26/2010 12:05:45 PM EDT
|
i was just at shooters shop in west allis and for the second time i am having problems with this gun it stove pipes mag just falls out whenever it wants
it is a rock river arms 10 'upper rra lower with the mag block rock river arms brand and i'm using colt 20 and 32 rd mags tried 7 different mags different ammo still the same thing happening. does anyone know about these problems i was told the mag block might be the problem but what other choice do i have? |
|
I had a RRA 9mm for a while and I had the same problem with the mag block. I used C-product and colt mags with S&B ammo.
I sold the RRA mag block and got a Hahn mag block and that fixed it for me. I have since sold that AR, I wish I hadn't. Oh well it just gives me an excuse to do another build. 
|
| i'm using umc 115fmj and federal 115 fmj mags do lock in tight until you start shooting i am comparing to my colt 9mm and i'msmoothing out the feed ramp a little it looks as if the colt is smoother and flatter. i will try to match the rra mag block to that. alos it didn't seem like the bolt had enough power to cycle back i am using the rra 9mm buffer i don't know about the spring? i also have a magpul crt stock on it |
|
Quoted:
I had a RRA 9mm for a while and I had the same problem with the mag block. I used C-product and colt mags with S&B ammo. I sold the RRA mag block and got a Hahn mag block and that fixed it for me. I have since sold that AR, I wish I hadn't. Oh well it just gives me an excuse to do another build. I have been building ARs since 1992 and have NEVER had a 9mm build work like a factory Colt. I turned a factory Colt into an SBR and have NEVER had a hiccup...with her, all magaines, ammo, with and without a Gemtech Raptor. V OUT |
|
Quoted:
Quoted:
I had a RRA 9mm for a while and I had the same problem with the mag block. I used C-product and colt mags with S&B ammo. I sold the RRA mag block and got a Hahn mag block and that fixed it for me. I have since sold that AR, I wish I hadn't. Oh well it just gives me an excuse to do another build. I have been building ARs since 1992 and have NEVER had a 9mm build work like a factory Colt. I turned a factory Colt into an SBR and have NEVER had a hiccup...with her, all magaines, ammo, with and without a Gemtech Raptor. V OUT One of these days I will get another 9mm. I might look into getting a Colt. I have 2 builds in process right now so it will be a while. Variable, have you had any experience with .45 acp ARs? |
| i have 2 rra 9mm setups, one pistol and one carbine. i built them both and use a Garrison Mfg. top loading block. they look a lot like the rra block. i had issues on the pistol with stove pipes and it drove me nutty. i looked close @ the carbine i built and ended up switching the blocks and it was the block. after looking i noticed the ejector was slightly bent toward the inside of the rifle on the bad block. i bent it out to match the good block and its 100% now. after about 2k rounds still not an issue. that could be the ejection issue but the mag thing is hard to tell. i have 8 colt mags stamped "government use only" on them and about 30 of the promag plastic mags and they all run 100%. i would try rra for help and if that dont work, try another mag block mfg. good luck and let us know how it turns out. |
|
Seems like with 9MM setups the down fall is usually the magazines used.
I switched from a UZI mag and VM Hy-tech mag block, because I had so many problems with them. Using cheap mags was probably a lot of it. I then went to a RRA mag block, and ProMag poly mags, and I honestly have never had 1 problem. If I did, I don't remember it. The ProMag's are brittle and cracked on the top where it curves in on a few of mine, but they still function. I think ProMag will replace mine. I just recently got some C-product mags and they are very tight, I'm not sure if it will cycle because the mag seems to cause the bolt to hang up. |
|
i talked to rra today one of their technicians explained to me about the mag block and the extractor my extractor wasn't quite close enough to the bolt and needed to be bent over my mag catch could be worn already not even 100rds through gun yet so i ordered a new mag catch and most importantly i need a carr spring instead of a standard spring. we will try these improvements and see what happens lifetime warranty i love it.
thanks for all the advice i will post results when i get back to the range |
|
Quoted:
Quoted:
Quoted:
I had a RRA 9mm for a while and I had the same problem with the mag block. I used C-product and colt mags with S&B ammo. I sold the RRA mag block and got a Hahn mag block and that fixed it for me. I have since sold that AR, I wish I hadn't. Oh well it just gives me an excuse to do another build. I have been building ARs since 1992 and have NEVER had a 9mm build work like a factory Colt. I turned a factory Colt into an SBR and have NEVER had a hiccup...with her, all magaines, ammo, with and without a Gemtech Raptor. V OUT One of these days I will get another 9mm. I might look into getting a Colt. I have 2 builds in process right now so it will be a while. Variable, have you had any experience with .45 acp ARs? As a kid (1980s) I was lucky enough to shoot the hell out of an AR that used Grease gun mags (Olympic if I remember). It never had a hiccup but I have never seen one since. They were doing ALOT of T&E at Valor Arms back in Pittsbugh where I grew up. I never had any luck with any other configurations. V OUT |