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Would A Barrel Extension Jam The Gun?

barrel extension tbb mp7

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#1 Outlaw1995

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Posted 12 March 2012 - 03:45 PM

I'm new to the MP7 platform, but needless to say I've looked into it for a few months now... I saw a few barrel extension options from Evike and another dealer. One barrel extension locks over the barrel- now I was curious if this added weight will crack/break the hop up or possibly jam the gun... another barrel extension:
http://www.evike.com...oducts_id=37197

has a 6.02 tbb in it to increase fps 60+... I'm assuming this tbb goes inside the normal 6.05 and touches the hop up bucking, but wouldn't this jam the gun as well? As well as block gas to escape??

Any thoughts would be helpful...
Thanks guys.

#2 Trevytrev

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Posted 12 March 2012 - 04:39 PM

uhh, god, sorry followed link last time and lost a big text block of exlanation,
-no jammies
-does not go inside barrel
no hurty hop up
-no hurty barrel
-gas block no worky?
i used this one instead ( +150 vs +60)
http://www.redwolfai...P7_Silencer.htm ( out of stock)
hope this helps!!

#3 General Pickle

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Posted 08 April 2012 - 10:37 PM

I have looked into this extension myself, though I am still weary of it. The idea of simply sticking two barrels together doesn't seem technically sound to me. Wouldn't the barrels cause a lack of air seal? Wouldn't that jam the BB's in the connection between the two barrels? Would that void the warranty? I would love to get something like this, as skirmishing outdoors against AEGs and sniper platforms is rather difficult with an MP7, just a little boost in FPS and range could help a lot. Any experience or input would be appreciated from me as well!

Edited by General Pickle, 08 April 2012 - 10:40 PM.


#4 tiger

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Posted 09 April 2012 - 03:01 AM

View this http://www.arniesair...60#entry2530551

#5 akiraspeedstar

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Posted 13 April 2012 - 12:41 AM

I purchased the AngryGun QD Power Up suppressor and like the 6MM Solutions model it does not have a barrel that goes over the OEM barrel or into the OEM barrel. It works by butting the two barrels together with tension via a spring system inside of the suppressor. I personally have noticed a 30'-40' increase in range with accuracy increasing as well (though the accuracy increase isn't a night and day difference).

For me the biggest reasons I purchased the suppressor was because I love the look of suppressed MP7s and that a little increase in range and accuracy would be welcomed as well. So for me it was worth it, though spending $75-80 is up for you to decide. Also I like how you can just remove the suppressor in a second and return right back to stock.

I'll admit though, I do have some fears that the tension on the OEM inner barrel could cause some damage to part#9 which holds the inner barrel in place, I hope this isn't the case.

#6 Outlaw1995

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Posted 13 April 2012 - 08:07 AM

View Postakiraspeedstar, on 13 April 2012 - 12:41 AM, said:

I purchased the AngryGun QD Power Up suppressor and like the 6MM Solutions model it does not have a barrel that goes over the OEM barrel or into the OEM barrel. It works by butting the two barrels together with tension via a spring system inside of the suppressor. I personally have noticed a 30'-40' increase in range with accuracy increasing as well (though the accuracy increase isn't a night and day difference).

For me the biggest reasons I purchased the suppressor was because I love the look of suppressed MP7s and that a little increase in range and accuracy would be welcomed as well. So for me it was worth it, though spending $75-80 is up for you to decide. Also I like how you can just remove the suppressor in a second and return right back to stock.

I'll admit though, I do have some fears that the tension on the OEM inner barrel could cause some damage to part#9 which holds the inner barrel in place, I hope this isn't the case.
Thanks for the report. Could I get a link to the AngryGun QD Power Up unit? I can't seem to find it on the internet. Never mind, I found your link on the official MP7 pics thread.

Edited by Outlaw1995, 13 April 2012 - 08:12 AM.


#7 akiraspeedstar

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Posted 13 April 2012 - 08:29 AM

Just an FYI, AngryGun has also just released a tan version as well.

#8 Jdogger

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Posted 17 September 2012 - 04:49 PM

OK... so some time has passed... has anyone else had any issues with either the Angry Gun or 6mm Solutions power up suppressors damaging their gun? I've heard some stories of the extensions working great... for awhile. Until the tension forces the OEM backwards a few millimeters. I bought the 6MM Solutions along with an MP7 (still waiting for them to arrive) and think I may have wasted 80 bucks right out of the gate, judging by what I've read. Unless I hear some positive feedback on these things, I'm tossing mine aside and forgetting about it without even taking it out of the box.

#9 gcw360

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Posted 17 September 2012 - 06:16 PM

Note:  While I personally do not own one.  I can''t endorse it based on the design and the postes that I have seen not supporting it.

#10 Jdogger

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Posted 18 September 2012 - 06:10 PM

So my box arrived today. Regarding the MP7 itself.... Holy smokes!!!! No need to go into details about that, though. I think it's safe to assume you already know! :) About the power up (S-word), there may be some hope after all. Certainly not for the "power up barrel extension." The tube was promptly disassembled and that whole assembly removed. What that left me with was a VERY nice (S-word) tube, complete with not so cleverly hidden HK trades (a little black sticker covered it.) It may also be noted that I received an Angry Gun piece, not the 6mm solutions I ordered. So what I'm wondering now... I understand other (S-word) tubes come with foam and spring inserts... Does anyone have any suggestions as to where I could acquire or improvise those internals? This is a reeeallly nice VFC quality tube.... I'm glad to say all is not lost.

(Use of the S-word is frowned upon here, right? Trying to respect the rules...)

#11 gcw360

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Posted 19 September 2012 - 06:03 PM

Stick with "barrel extension", we know what you mean.

#12 gregwhite52

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Posted 07 October 2012 - 02:03 PM

I bought a "6mm solution" mp7 suppressor a while back, and if i'm not mistaken the angry gun suppressor is just a copy of that. Anyway, how the 6mm solution is put together it it has its own flash hider for the QD function and inside the suppressor is, maybe 1/2" thick, foam rings which hold centered a spring, that spring puts tension on an inner barrel which is held centered by 2 sturdy plastic spacers in the front and back of the tube.  the inner barrel has a ring cut into it where you position a circular metal block into which you screw in a hex screw which screws down into the ring creating a surface for the spring to provide tension on the barrel.  I know I am incredible long winded but if you're still following me here is the important part It is a bad design, the spring provides so much tension on the barrel in the suppressor that it pushes back the inner barrel in the gun and I think, not 100% sure on this still, that it was bunching up the hop up bucking.  There are 2 solutions: 1st: you unscrew the hex screw and move back the block of metal attached to the barrel so that the spring doesn't have to compress as much when you go to seat the suppressor with the flash hider fully, the problem with this fix -as I found out the hard way- is that because the hex screw isn't seated in a channel and is working simply with friction on the barrel the vibration from shooting and the stress from the spring can eventually make the screw come loose and the barrel simply slides out when you shoot it.  The tiny bit harder, better 2nd: you have to go in and put the hex screw in the channel cut in the barrel and put the suppressor on without the front cap on, then, press the suppressor barrel hard enough to have it seat with the guns barrel and push the spring back so it is fully seated with the ring block and mark where the spring comes about 1/4-1/2" past the last foam disk, cut the spring there. when you screw the front cap back on the plastic shim will push back on the spring just that 1/4-1/2" so there is enough tension on the suppressors barrel to keep it seated with the guns' barrel, but not so much that it binds up the hop up.

#13 gregwhite52

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Posted 07 October 2012 - 02:05 PM

before I did either of those modifications when I would attach the suppressor and fire, 2-3 bbs would jam in the hop up very regularly and all come falling out when the bolt locked back.  If you're concerned about the 2 barrels not aligning correctly, no need, I don't know about the angry gun, but the 6mm solution has shims in the front and back to keep the barrel centered and straight, and for the 8 months I've been using it I haven't once had a bb shatter because it hit a gap or misalignment between the barrels.  one good website to buy mp7  parts from is scopeandlaser.com it sounds kinda sketch, but its really not, and they have a lot of hard to find stuff at good prices and the shipping is cheap too, anyways that my little bite of info on mp7 stuff, hope it helped.




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