dogtired Posted March 30, 2017 Share Posted March 30, 2017 PSA glock upper/lower snapped together. Runs like a champ. Took third the first time I shot it, 1st M open pistol, 2nd GM open pistol shooting PCC. I put a tanker brake on it to help the timer. I learned 36 round Glock mag with Dawson basepad swells at the top when full. Had to be stripped by hand when on a several mag change stage. Link to comment
Patrick Scott Posted March 31, 2017 Share Posted March 31, 2017 My Quarter Circle 10 Glock Small Frame lower/ JP bolt combo has been pretty damn good with about 4 different uppers, 4 different fire control groups, half a dozen different loads, and an un-countable amount of buffer/buffer spring combos. One fire control group(Elftmann) had minor(2 out of 400) reset issues and some load/buffer+spring combos put it near NFA land(bump-bursts). Using Glock mags all configurations have fed, shot, extracted and ejected. Link to comment
Flatland Shooter Posted March 31, 2017 Share Posted March 31, 2017 8 hours ago, dogtired said: I learned 36 round Glock mag with Dawson basepad swells at the top when full. Had to be stripped by hand when on a several mag change stage. Crap. Did not know that, I've been keeping my mags loaded all the time. Link to comment
dogtired Posted March 31, 2017 Share Posted March 31, 2017 When you shoot it and drop down to 20ish rounds it drops free. This was on a 12 round speed shoot that required two mag changes when it stuck. All the other stages were 32 or under so no mag changes. Link to comment
Flatland Shooter Posted March 31, 2017 Share Posted March 31, 2017 I just pulled the rounds out of all 7 mags. All still drop free. They are all newer magazines. Did it take a while for the magazines to weaken where they would deform? (Please say yes.) Have you seen any similar problems with the 15 rd mags with Dawson basepads? Bill Link to comment
amp Posted March 31, 2017 Share Posted March 31, 2017 13 hours ago, Flatland Shooter said: I just pulled the rounds out of all 7 mags. All still drop free. They are all newer magazines. Did it take a while for the magazines to weaken where they would deform? (Please say yes.) Have you seen any similar problems with the 15 rd mags with Dawson basepads? Bill No, mine have deformed since new. I typically only download on Classifier stages to ensure they drop. Link to comment
wgj3 Posted March 31, 2017 Share Posted March 31, 2017 On 3/28/2017 at 10:53 AM, 1911luvr said: I'm no spring chicken either, and pushing 260, so I can relate. This was my best run and it felt good at the time. All A zone except one C on the last target. It was 7 seconds off the lead time (an open pistol shooter). I know I had a couple misses on the steel I need to clean up, but even if I shot once per target and didn't have a mag change, I don't know how I could shave that much time. Sent from my iPhone using Tapatalk You've got plenty of places to make up that time diference, You don't realize how long you spend on those reloads, etc. Reload while moving to that 2nd position. Run directly to the 2nd position. Shoo the swinger on the first show. And the make-up shots on the star all cost you a little time. You have to get it in your mind how all those little bits of time add up. 7 seconds is NOT very long... Link to comment
wgj3 Posted March 31, 2017 Share Posted March 31, 2017 On 3/27/2017 at 1:09 PM, bobert1 said: My "Just Right Carbine" works with all ammo that I have used. I love some rattle-can action!!! And, it's my favorite color too! Link to comment
wgj3 Posted March 31, 2017 Share Posted March 31, 2017 JP GMR rocks with factory Glock mags and/or ETS 17 and 31 rds mags with or without Dawson extensions. I assembled one from: Runner Runner (NFA) lower JP bolt Hiperfire 24C Faxon 16" lightweight barrel JP 9mm SCSS with 2 of the tungsten weights replaced with steel and lighter .223 spring. TACCOM magwell Lone Wolf "gill" 9mm pistol comp/brake Lancer 15" handguard (almost completely covers comp) and fixed A1 CF stock Stark grip Cmore Railway BCM/Vltor mid-size latch charging handle The gun is running great, but even on my NON-LRBHO system, I have had a bolt catch fail from dropping the bolt on it to lock the action open. Catch has finally bent so much that it no longer moves correctly in its recess. Link to comment
sousa Posted March 31, 2017 Share Posted March 31, 2017 (edited) I love being different! This thing just runs and runs... Norinco 320 UZI clone Edited March 31, 2017 by sousa Link to comment
jmnielsen Posted April 1, 2017 Share Posted April 1, 2017 CZ Scorpion here, been running like a champ for the past 4 months. I only shoot factory ammo, so no load data. Zhukov Stock was a nice upgrade and the CZ custom trigger will be when I get it ordered. Link to comment
Jimboslice Posted April 1, 2017 Share Posted April 1, 2017 PSA Glock lower/ PSA 16" upper, PSA bolt, Kaw Vally buffer/spring, UM Tactical rage comp, odinworks mag release, Hyperfire 24c. Ran extremely well at the 1 and only PCC match we've had with 3 people shooting it all day. Only issue I had was a nasty doublefeed at the very end due to a really dirty magazine. Link to comment
Chips0410 Posted April 3, 2017 Share Posted April 3, 2017 Factory jp gmr13 runs like a champ topped with trijicon mro have had one malfunction on it and it was a ammo issue Link to comment
Aircooled6racer Posted April 3, 2017 Share Posted April 3, 2017 (edited) Hello: I shot my Quarter Circle 10 Glock lower today. Ran perfectly but I still need to work on the reloads for classifiers and stages. Thanks, Eric Edited April 3, 2017 by Aircooled6racer Link to comment
skeeljc Posted April 3, 2017 Share Posted April 3, 2017 PSA dedicated Colt pattern lower with Magpul stock and pistol grip Timney 3# single stage trigger Blitzkrieg Hydraulic buffer with JP AR-10 spring Aero Precision upper PSA 16" 9mm barrel PSA G-9 Hybrid bolt Double Star handguard C-More Railway RDS Metalform 32 round mags Active left side charger conversion by Jim Skeel Link to comment
psyops Posted April 5, 2017 Share Posted April 5, 2017 On 3/28/2017 at 9:53 AM, 1911luvr said: I'm no spring chicken either, and pushing 260, so I can relate. This was my best run and it felt good at the time. All A zone except one C on the last target. It was 7 seconds off the lead time (an open pistol shooter). I know I had a couple misses on the steel I need to clean up, but even if I shot once per target and didn't have a mag change, I don't know how I could shave that much time. Sent from my iPhone using Tapatalk I think you looked awesome!!!.....keep having fun!! Link to comment
jliew08 Posted April 5, 2017 Share Posted April 5, 2017 JP GMR-13 straight from Shooter's Connection back in May of 2016. Haven't had a single problem. Used my same production loads with great success. May start to dial in a specific load for it. Just dropped a Hiperfire 24c in it a month ago. Haven't had a chance to run that through its paces yet. Topped with a Trijicon RMR at the moment that i stole off what was going to be a carry optics build. Link to comment
Jman Posted April 5, 2017 Share Posted April 5, 2017 On 3/27/2017 at 11:09 AM, bobert1 said: My "Just Right Carbine" works with all ammo that I have used. +1 Link to comment
RH45 Posted April 5, 2017 Share Posted April 5, 2017 I bought a TNW survival rifle at a local gun shop because I really liked that I can unscrew the handguard, and pull the barrel out. I gave it to a machinist, who is a friend of mine, and he drilled and tapped the safety & the magazine release, which is inconveniently located on the left side, in front of the magwell. I also had him thread the barrel, which he made a comp for, and he put at least one mercury, recoil reducer in the stock. I tried a variety of loads through it, from 115 grain-165 grain bullets. In my plastic pistols, loads with 160 grain coated bullets have the least recoil, but, in the carbine, I get more muzzle jump than any other load.The chamber is shorter than any other 9mm I own. I put together a load with 115 hp bullets, with Autocomp behind them, and I know the comp isn't getting much gas, but, I have less muzzle jump than any of my other "production" loads. I happened to have my chronograph with me, the last time I went out, and was shocked to see Winchester White box, 115 fmj at 163 pf. My loads with Autocomp came in about 142pf. I don't have an exact round count, but, I've shot 5 matches with it. I don't know if it's because of the blowback design, or, maybe the loads with Autocomp are dirty, but, it runs perfect for about 100 rounds, then, starts to choke. I have a match this Sunday, and am taking some cleaning supplies along, and going to pull the barrel after about 50 rounds to clean it, and hopefully won't have any issues. Link to comment
flynbenny Posted April 15, 2017 Share Posted April 15, 2017 Mine is a PSD 80% Colt pattern lower. CMMG 9mm buffer with a spacer made from some quarters, generic carbine spring, KE Arms DMR trigger, standard safety, Colt 9mm bolt catch, normal mag button, Magpul SL stock. Upper is forged flat top, (unsure who made it), holds a Wilson 16" barrel, Colt 9mm A2 birdcage, BCM KMR-A 13" rail, CMMG MK-9 bolt. For sights I run a LaRue BUIS rear, and a Troy HK style fixed front. Waiting on my Burris Fastfire III to come in the mail from that rebate, probably going to stick it on one of the Burris 410348 mounts. Magazines...my gun will not run Metalform style (RRA, Colt, PSA) mags at all. ASC mags work 100%. I run both 20s and 32s with no issues. Ammo: Gun will not run any steel or aluminum cased stuff I've fed it. It runs ok with most brass 115 gr, but runs with authority using NATO spec 9x19. I have had no problems with 147 gr JHPs from Hornady, Winchester, or Federal. Did one 3-Gun match locally a couple weeks ago, ran the NATO stuff, had no issues. Even hit some micro poppers at 100 yards. Accuracy is very good, especially with the Hornady XTP bullets. I definitely had some problems at first, once I got the ejector bent right the gun has run well. It does like to run wet, and I've noticed after 200-300 rds I will start having some hiccups. Cleaning the bolt and lubing it, and wiping out the receiver gets it running again. The more I shoot it, the more I like it. It does seem to shoot a little rougher than a 5.56 gun though, and the mag changes are a lot harder. I plan on trying a Taccom magwell soon for the latter problem. Link to comment
Pat Miles Posted April 16, 2017 Share Posted April 16, 2017 On 4/2/2017 at 7:17 PM, Aircooled6racer said: Hello: I shot my Quarter Circle 10 Glock lower today. Ran perfectly but I still need to work on the reloads for classifiers and stages. Thanks, Eric Still wearing those crazy plaid short pants! Link to comment
morpheus Posted April 17, 2017 Share Posted April 17, 2017 (edited) PSA 9mm Forged Dedicated Glock®-style Lower Receiver LRBHO Anderson Manufacturing Lightweight Sport AR Upper Receiver FAXON FIREARMS 9mm Taper 10.5 in Nitride Barrel Magpul MOE SL Grip Guntec 10" M-LOK Handguard Rail Blitzkrieg Components 9mm AR-15 Hydraulic Buffer & Spring Combo - PISTOL/SBR ULW 9MM MUZZLE BREAK KNS Anti-Walk Pins Edited April 17, 2017 by morpheus Link to comment
benlineberry Posted April 18, 2017 Share Posted April 18, 2017 Took a little bit to get it running right. Factory Stag mags were junk; switched to Metal Forms, and they are 100%. Lefty Stag upper/lower/barrelGeissele SAA-E triggerLancer carbon fiber foregripLantec Dragon muzzle brakeBlitzkrieg Components pneumatic buffer (kept breaking BHOs) Since the photo, I've added an Eotech 512. Link to comment
texascavediver Posted April 18, 2017 Share Posted April 18, 2017 (edited) My little two stamper: PSA Colt lower Matrix side charging upper Faxon 4.5" 9mm barrel HK Parts 3-lug 1/2X28 barrel adapter Odin Works 02 Lite Keymod Handguard BCM carbine receiver extension BCM Mod 3 grip MFT minimilist stock JP 9mm bolt JP 9mm SCS JP EZ trigger kit PSA 32 round mags Silencerco Octane 9 suppressor Primary Arms red dot w/ Larue quick disconnect mount. With no mag, no suppressor and no red dot, it weighs 5# 2oz. It took me a little while to get it working properly. I had to bend the ejector to ride next to the inside of the bolt to get it to eject the spent brass and I had to file (shorten), the bolt catch extension (it originally extended to far into the mags obstructing the bullets causing mis-feeds). I also had to notch the Odin Works handguard to fit around the bump on the upper for the side charging handle. Now that I've got it working reliably, I've run 115, 124 & 147 gr Freedom Munitions new and reman without any issues. All suppressed. Edited April 18, 2017 by texascavediver Link to comment
RigPig Posted April 18, 2017 Share Posted April 18, 2017 Aero slick upper Seekins 15" NOXs rail JP Bolt JP 16" SuperMatch Barrel BCM charging handle AP Mfg brake NFA Glock lower JP lpk Hiperfire 24c SI Viper stock KVP buffer tube, 9mm buffer and 308 carbine buffer spring Glock 33rd and ETS 31rd mags It has run 100% since putting it together. Zero issues or "tuning" needed so far. Link to comment
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now