Bamse Posted June 23, 2011 Report Share Posted June 23, 2011 daniel: the mags are M4 spec and fitted just lovely when CB. Maybe ill try filing a teeeeeeeny bit in the magcatch hole on the mag. Not a problem so far tho Quote Link to post Share on other sites
jkpics Posted June 24, 2011 Report Share Posted June 24, 2011 There are only scar mags for CB, and then only thing different is a o-ring under the rubber, just chuck it when upgrading to OB, and I have seen a lot of left over molding on that piece just below the red mark, so make sure to clean the part and get a good fit before assembly. Quote Link to post Share on other sites
muymuy50 Posted June 24, 2011 Report Share Posted June 24, 2011 Hi, \ I an't seems to find it,but how do you exactly adjust the hop. The hop adjuster is kinda stiff and i can't seem to move it. Is it rotate? hope someone could assist. thanks Quote Link to post Share on other sites
danielsilva Posted June 25, 2011 Report Share Posted June 25, 2011 I just managed to install a brand new nozzle assembly and ... still no full auto I'm now seriously stumped to why this is happening Quote Link to post Share on other sites
mnmc10 Posted June 25, 2011 Report Share Posted June 25, 2011 can you explain exactly whats happening when in full auto? Quote Link to post Share on other sites
Bjerhof Posted June 25, 2011 Report Share Posted June 25, 2011 I've heard or read something about if you mount replica optics on a GBBR the blowback will break the sights...anyone who can confirm this? Quote Link to post Share on other sites
kruck Posted June 25, 2011 Report Share Posted June 25, 2011 G&P eotech 552 fine on G39 for a thousand rounds or so, had it on my OB M4 for about 700rds now (which kicks harder than my G39 did, probably the temperature - I had the g39 in winter) and its still fine. Depends entirely on the optics of course, but this one's great Quote Link to post Share on other sites
Bamse Posted June 27, 2011 Report Share Posted June 27, 2011 jk: the magazines had no o-rings on delivery so there are none to be removed. trust me when I say it's not that. ;D There is no visible molding excess, but i just took a scalpel and removed a small amount of plastic and no more visible scuff marks. Â I still haven't tried shooting BBs with the damn thing yet so everything might just be fine when it comes to actual performace, it was just dome minor reflection made when emptying a lot of co2 capsules, the fun way Quote Link to post Share on other sites
mnmc10 Posted June 27, 2011 Report Share Posted June 27, 2011 was able to use my ob m4 last weekend. hop is pretty hard to set it either over hops or does not get any hop effect at all. in between games i will set the hop right then when the game starts it doesnt have hop again. so i went home pretty much ######. Â after opening the hop again i discovered that the hop lever that pushes the hop rubber is getting stucked. so at first i replaced the two orings that acts as a bushing on the hop lever arm shaft with a thinner one thinking thats whats causing it to stick. it wasnt fixed so i tried installing the hop lever without orings at all. that pretty much solved it. as it turns out on my hop assembly it doesnt need the orings since it doesnt move left to right even if i dont put the bushings in. the bushing actually causes the lever to get stucked. Â i can now turn the hop on or off on demand, it now shoots straight and will see this weekend if any other things will come out or cause problems. Quote Link to post Share on other sites
danielsilva Posted June 27, 2011 Report Share Posted June 27, 2011 That's weird my M16 came without any orings and never lost its settings... don't see the point in having orings there tbh. Quote Link to post Share on other sites
mnmc10 Posted June 27, 2011 Report Share Posted June 27, 2011 (edited) as i think more about it, my pdw and g36 only have one oring. and the hop assembly usually have only one side counter bored to accomodate the oring. on my open bolt kit both sides of the axles have orings. maybe there should be only one oring? Â maybe the guys who assembled the kit in the we plant accidentaly put in the extra ring? Edited June 27, 2011 by mnmc10 Quote Link to post Share on other sites
celbii Posted June 27, 2011 Report Share Posted June 27, 2011 Great source of information since i'm looking into this gun. Quote Link to post Share on other sites
kojak Posted June 27, 2011 Report Share Posted June 27, 2011 I'm looking at it right now; only the right side has a recess for the o-ring in my open bolt M4 kit, and two are installed. I'll be trying it with one, though I haven't noticed it sticking. There should really be a second screw on the top of the chamber holding it together. Quote Link to post Share on other sites
1st Commando Posted June 27, 2011 Report Share Posted June 27, 2011 I noticed while testing my M16 that the hop was great for a few rounds and then would drop on both auto and semi. I have now removed both o rings and the barrel is more stable and hopefully my hop will be better as you guys have found. I'll test it later in the week when I have some decent range to shoot over Quote Link to post Share on other sites
mnmc10 Posted June 28, 2011 Report Share Posted June 28, 2011 ill be putting one oring back as i now think its supposed to be there cause there is a recess on one side of the hop assembly. one screw holding the hop assembly together is more than enough since it will slide fit in the upper receiver anyway that alone will hold the hop together. Quote Link to post Share on other sites
Megalomaniac Posted June 28, 2011 Report Share Posted June 28, 2011 <!--quoteo(post=1937285:date=Nov 10 2008, 10:29 AM:name=Magsz)--><div class='quotetop'>QUOTE (Magsz @ Nov 10 2008, 10:29 AM) <a href="index.php?act=findpost&pid=1937285"><{POST_SNAPBACK}></a></div><div class='quotemain'><!--quotec-->The steel parts are probably parkerized which is why you're seeing the difference in finishes. If a gun had all of its metal parts finished in the same color i would be a little confused. (unless of course you duracoated, keracoated, alumahyderized the entire thing). <img src="http://www.arniesairsoft.co.uk/forums/public/style_emoticons/<#EMO_DIR#>/happy.gif" style="vertical-align:middle" emoid="" border="0" alt="happy.gif" /><!--QuoteEnd--></div><!--QuoteEEnd--> Â Good point, it's starting to grow on me (the whole thing not just the grey) but the real AR15 I shot certainly didnt have any grey in it. (It was an Oly Arms PCR97) anywhere. Then again it was kind of an oddball rifle anyways <img src="style_emoticons/<#EMO_DIR#>/smile.gif" style="vertical-align:middle" emoid="" border="0" alt="smile.gif" /> (Full length AR15 with collapsible stock <img src="style_emoticons/<#EMO_DIR#>/biggrin.gif" style="vertical-align:middle" emoid="" border="0" alt="biggrin.gif" />). Â I'd definetly like to see what the 30shot spread is with both barrel lengths. Even if I had to use the short inner barrel with the M4 outer I'd probably do it because I dont know if I'd ever fully like the stubby look with the detachable carryhandle. Thought about making a 733 out of it but I'd rather have the full length M4. I wonder what could be done to limit the FPS while still providing the awesome blowback on these! Leaky mags do worry me a bit but then again, what gas mags dont leak stock <img src="style_emoticons/<#EMO_DIR#>/smile.gif" style="vertical-align:middle" emoid="" border="0" alt="smile.gif" /> Â NPAS, no reduction in blowback as far as I've felt, that is with the old closed bolt though. Quote Link to post Share on other sites
mnmc10 Posted July 3, 2011 Report Share Posted July 3, 2011 (edited) http://tw.myblog.yahoo.com/frogman-myblog/article?mid=10305&prev=-1&next=10263 Â so a flaw has been found and was corrected. i just checked my m4 and it doesnt do that. the nozzle is jsut the right length and doesnt push the bb pass the hop nub. Edited July 3, 2011 by mnmc10 Quote Link to post Share on other sites
danielsilva Posted July 3, 2011 Report Share Posted July 3, 2011 I've seen that but i believe is more to correct some problems in full auto ? Quote Link to post Share on other sites
1st Commando Posted July 9, 2011 Report Share Posted July 9, 2011 I experienced issues with my hop on my M16-A1. the first couple of shots the hop was fine but after a burst or more single shots the hop started having no effect . I shaved of about half a mm off the front of the nozzle . This seems to have solved the issue as it appears the nozzle was forcing the BB past the hop nub when it returned to battery under recoil Quote Link to post Share on other sites
danielsilva Posted July 9, 2011 Report Share Posted July 9, 2011 I experienced issues with my hop on my M16-A1. the first couple of shots the hop was fine but after a burst or more single shots the hop started having no effect . I shaved of about half a mm off the front of the nozzle . This seems to have solved the issue as it appears the nozzle was forcing the BB past the hop nub when it returned to battery under recoil  Yup that's it, http://tw.myblog.yahoo.com/frogman-myblog/article?mid=10305 Quote Link to post Share on other sites
Reppyboyo Posted July 9, 2011 Report Share Posted July 9, 2011 Hmmm might have to try that on my G39 as I get the same no hop at full auto problem. Quote Link to post Share on other sites
Bamse Posted July 11, 2011 Report Share Posted July 11, 2011 After finally been able to test the damn thing after I installed my OB-kit on my M4 I really just have to say; wow. Straight as an arrow and quite awesome reach. After setting sighs I'm able to get repeated multiple hits on 70m, with like one flyer/dipper out of 15-20 shots. Â But (there's always a goddamn but with WE it seems ;PPP), suddenly I'm only able to get like 25 shots out of a CO2 capsule ... not even one goddamn magazine :/ With CB-kit I could often get two magazines worth of pewpew per capsule and even tho OB seems a bit more thirsty for propellant this is ridiculous ;P The ROF is quite slower compared when it had the CB-kit, and it's almost as if the bolt has some trouble seating in it's forward position when the nozzle travels over the magazine seal. Â Any tips&tricks here? Quote Link to post Share on other sites
danielsilva Posted July 11, 2011 Report Share Posted July 11, 2011 Just wear and tear, after a while the rubber seal will fit fine. I usually just make sure the seal is well lubricated. But its weird that you're getting less ROF, my OB had a higher ROF than my CB guns ... Have you only used co2 ? Quote Link to post Share on other sites
kojak Posted July 11, 2011 Report Share Posted July 11, 2011 I noticed the same thing with CO2--every mag still had rounds left when the capsule was empty when I used to get two full loads with gas left over. Thought it was just the last of my mags springing leaks. Â I'm also seeing far more fliers on auto. Quote Link to post Share on other sites
Bamse Posted July 11, 2011 Report Share Posted July 11, 2011 daniel: roger that, ill make sure to get some more bb's through it and see what happens. thx. The only mags I have are co2, no gg/propane at all. Quote Link to post Share on other sites
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