Sarge Posted December 8, 2015 Share Posted December 8, 2015 What kind of oal can I run in a 9mm AR? Are they typically throated pretty deep? Will these run on 130PF loads? What colt style mags do you guys recommend? I'm reading as much as I can on the subject and it looks like metal form is the ticket but some say the cheaper mags work great too. Gun is a Stag AR 9 Link to comment Share on other sites More sharing options...
aandabooks Posted December 8, 2015 Share Posted December 8, 2015 Posting to follow. An AR9 is at the top of my next gun buy list. Link to comment Share on other sites More sharing options...
StealthyBlagga Posted December 8, 2015 Share Posted December 8, 2015 (edited) I run standard length 130PF 124gr RN-FMJ loads in my AR15/9 SBR (10" barrel). I use Metalform and modified Uzi mags held in a top-install Hahn mag block. No last round BHO (no great loss - less stress on the lower) but otherwise it runs great: Edited December 8, 2015 by StealthyBlagga Link to comment Share on other sites More sharing options...
slbrugby Posted December 8, 2015 Share Posted December 8, 2015 I loaded my 9mm AR ammo to 1.12 (147 precision deltas behind CFE pistol). I have only used the Metalform mags, so I can't help out with any of the other type of brands, but they have worked great. I have seen a few great sales on the 9mm colt style magazines at Palmetto. A friend picked one up for me when he was placing an order when the deals were going on - so fingers crossed that they are gtg. Here is my 9mm SBR wearing with a Tirant 45 (7" ADCO barrel). Hopefully I posted that photo right, it is my first shot at uploading one. Link to comment Share on other sites More sharing options...
Sarge Posted December 9, 2015 Author Share Posted December 9, 2015 I ordered metal forms from midway today. I got birthday pricing so they weren't too bad. Still more than stag branded mags that came with the rifle but those mags are made by acs and acs seems to have a less than stellar record. I actually emailed stag and voiced my concerns and they assured me acs makes them to more stringent specs for the stag label. Thanks for the load info. Looks like I'll just run my Production ammo through it for starters. Link to comment Share on other sites More sharing options...
enutees Posted December 9, 2015 Share Posted December 9, 2015 Palmetto State Armory mags are made by metalform and work great. I have a bunch of uzi mags that were cut to fit for colt mags. I did these before affordable mags were plentiful and Uzi mags use to be less than $10 for an IMI 32 rd mag. Link to comment Share on other sites More sharing options...
Chills1994 Posted December 9, 2015 Share Posted December 9, 2015 I bought some Metalform mags from the LGS where I bought the Colt 6951. Cha ching$$$. Then I made the mistake of buying Uzi mags, which I still have to convert. Then I found some place even cheaper for the Metalform mags. If you look on YouTube, there are vids on how to convert the Uzi mags. There is also a pic with dimensions on where to cut the slot and how far down to auger out the back. Link to comment Share on other sites More sharing options...
Chills1994 Posted December 9, 2015 Share Posted December 9, 2015 Yeah, Sarge, to answer your question, I was just running my old production load ammo, which was a Montana Gold 147 over 3 point something grains of Titegroup. Link to comment Share on other sites More sharing options...
Chills1994 Posted December 9, 2015 Share Posted December 9, 2015 Sorry for the triple post, but just wondering if anybody has had any experience loading their 9mm AR mags with this tool, normally meant for the B&T MP9 or the HK MP5: I have never loaded more than like 20 rounds in my mags just because it kills my thumb. Lula supposedly makes a loader for the metalform mags. Link to comment Share on other sites More sharing options...
StealthyBlagga Posted December 9, 2015 Share Posted December 9, 2015 (edited) ... Lula supposedly makes a loader for the metalform mags. YES they do, and it is worth its weight in gold. Works great with metalform mags, but modified Uzi mags need a half-moon cut in the back between the feedlips. A trick for folks who find themselves without a loader: 1) Hold the magazine in your strong hand with your thumb uppermost. 2) Place a single round on top of the feed lips and press down firmly with your thumb. 3) Bump the base of the magazine sharply on any convenient hard surface (e.g. a table) while continuing to press down with your thumb. 4) Hey presto - the round is now in the magazine. 5) Rinse and repeat another 31 times. You are welcome. Edited December 9, 2015 by StealthyBlagga Link to comment Share on other sites More sharing options...
Sarge Posted December 9, 2015 Author Share Posted December 9, 2015 Ordered a few mag loaders yesterday too. Link to comment Share on other sites More sharing options...
wgj3 Posted December 9, 2015 Share Posted December 9, 2015 (edited) Or just get the JP GMR and easily load the 33rd Glock sticks by hand... And use whatever 9mm ammo you have on hand. Haven't tried the super-light sub-minor stuff, but it runs great on my 147gr 3-gun ammo at about 130PF. Not hatin on your new toy Sarge, but the JP I just received is slicker than snot. I know the price is a bit different... Edited December 9, 2015 by wgj3 Link to comment Share on other sites More sharing options...
Sarge Posted December 9, 2015 Author Share Posted December 9, 2015 I almost ordered one but I don't need that much of a plinker. For what I want it for the price difference is worth a $20 mag loader Link to comment Share on other sites More sharing options...
Chills1994 Posted December 9, 2015 Share Posted December 9, 2015 On a much different note... Do you think you could get a Franklin Armory binary trigger to work in a 9mm AR: ? Link to comment Share on other sites More sharing options...
Sarge Posted December 9, 2015 Author Share Posted December 9, 2015 On a much different note... Do you think you could get a Franklin Armory binary trigger to work in a 9mm AR: http://youtu.be/vMp3PC0diwI ? Probably have to be developed separately as everything I'm reading says the hammers are different in the blowback AR's?While this trigger will most likely be popular with some I prefer to pull the trigger to make any gun fire. Link to comment Share on other sites More sharing options...
Chills1994 Posted December 9, 2015 Share Posted December 9, 2015 (edited) And you can do that, just flip it back to semi. Yeah, you either have the different hammer or a ramped bolt. I don't think you need to have both. Edited December 9, 2015 by Chills1994 Link to comment Share on other sites More sharing options...
BigBamBoo Posted December 9, 2015 Share Posted December 9, 2015 9mm AR's triggers can be "goofy". I have owned three 9mm AR's. Two based on Colt pattern and one on the Glock mag. My first one I used a Timney 3 lb trigger with zero issues. The Glock based one I tried a ELF trigger and it would not run consistently. My current 9mm AR I am using a JP trigger setup with a JP upper on a Colt pattern lower and runs like a top. The reason I went back to a Colt pattern vs the Glock lower was I like to have the last round hold open function. Just s personal preference. 9mm AR's are a blast to shoot and due to the low muzzle blast and slow recoil impulse, they are great for kids, women, and new shooters. Link to comment Share on other sites More sharing options...
Jesse Tischauser Posted December 14, 2015 Share Posted December 14, 2015 Damnit man! I need a 9mm SBR rifle Link to comment Share on other sites More sharing options...
RangerTrace Posted December 14, 2015 Share Posted December 14, 2015 What kind of oal can I run in a 9mm AR? Are they typically throated pretty deep? Will these run on 130PF loads? What colt style mags do you guys recommend? I'm reading as much as I can on the subject and it looks like metal form is the ticket but some say the cheaper mags work great too. Gun is a Stag AR 9 The orange follower metal forms didn't work well for me. All kinds of feed issues on the last couple of rounds. The Metal Forms with the black follower work like a charm. Link to comment Share on other sites More sharing options...
rustybayonet Posted December 14, 2015 Share Posted December 14, 2015 (edited) Not sure if it is still made, but I had an ar9 it was in the late 90s early 00s and it used a normal lower with a gizmo that locked in the mag well and took sten mags. The came with a complete upper for 9 and the mag well part. Since I have a sten it didnt cost me any extra and never had a problem. Not sure if a sten mag loader would work on the uzi mags. Wonder if I could use the sten at a 3 gun match? Edited December 14, 2015 by rustybayonet Link to comment Share on other sites More sharing options...
rustybayonet Posted December 14, 2015 Share Posted December 14, 2015 What kind of oal can I run in a 9mm AR? Are they typically throated pretty deep? Will these run on 130PF loads? What colt style mags do you guys recommend? I'm reading as much as I can on the subject and it looks like metal form is the ticket but some say the cheaper mags work great too. Gun is a Stag AR 9 Sorry, got off track. I just used stock 115s in mine. Could you just measure your chamber just like a pistol? Or are you looking at ballistics and not what fits? P.S. I got rid of mine because it's just a heavy pistol. Link to comment Share on other sites More sharing options...
OPENB Posted December 14, 2015 Share Posted December 14, 2015 Rusty, I have that setup. It is a standard lower and FCG, with a block from Hahn that goes in from the top. It has a paddle mag release that uses STEN mags. The upper is from Olympic Arms. I had the barrel cut down to 11.5" and SBR'd it. I have two uppers for the lower that are SBR'd. I had a couple STEN mags cut down to 20 rd. to use locally before Ohio repealed the "over 30 is a machine gun" law. I'm kinda excited for PCC to happen. I've needed an excuse to shoot this upper for a while now. I've shot 115 factory, and some of my open major ammo, it eats it all. Link to comment Share on other sites More sharing options...
MickB Posted December 14, 2015 Share Posted December 14, 2015 Metalform never made orange follower mags. The Orange follower mags were made by C-Products and had reliability issues... Mick Link to comment Share on other sites More sharing options...
Sarge Posted December 14, 2015 Author Share Posted December 14, 2015 What kind of oal can I run in a 9mm AR? Are they typically throated pretty deep? Will these run on 130PF loads? What colt style mags do you guys recommend? I'm reading as much as I can on the subject and it looks like metal form is the ticket but some say the cheaper mags work great too. Gun is a Stag AR 9 Sorry, got off track. I just used stock 115s in mine. Could you just measure your chamber just like a pistol? Or are you looking at ballistics and not what fits?P.S. I got rid of mine because it's just a heavy pistol. My minor loads worked fine. Self defense loads worked fine as well. I was reading something on other forums about ballistics of SD loads and believe they are leaning towards hot 115's. Just not sure why? Heavy pistol? Hell, it's heavy for a rifle? Much heavier than my other AR. Link to comment Share on other sites More sharing options...
Chills1994 Posted December 15, 2015 Share Posted December 15, 2015 This is going on the span of about 10 years....back when I first joined this site back in 2005....but there have probably been about 5 people I have PM'ed over the years who were both Open shooters with their 9mm Major guns and they had mentioned out on the public forum here that they had a 9mm AR. So the reason I PM'ed them was to ask if they had shot their Open gun's 9mm Major rounds through their AR's. All of them said yes, and all of them said they never ran into any problems with malfunctions. I would guess in theory, a 115 grain bullet loaded with a really slow powder would be the best way to gain any velocity shooting it through a 16 inch barrel (versus say a 5 inch barrel). Besides, I would think 115's are cheaper. My old "production" load of 147gr Montana Gold's (it's almost like a flat point) run just fine. Link to comment Share on other sites More sharing options...
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