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Accuracy Upgrades for H&K MP7

MP7 Tbb Hop up Accuracy Upgrades

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#21 bryanchang

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Posted 25 December 2012 - 06:50 PM

I installed a 370mm 6.02mm TBB with A+ 1st gen hop-up bucking in my MP7, right now this MP7 is shooting at ~440 fps @ 73 degree indoor using 3.0g BBs and it is dead accurate. I can easily destroy the bullseye on the target paper from 25 - 30 feet away.

Posted Image

#22 gcw360

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Posted 25 December 2012 - 08:15 PM

OK, how about 70-100 ft?

#23 RexRocker AEG Dr

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Posted 25 December 2012 - 08:21 PM

Yea, like GCW asked, how accurate is the gun at longer distances?  Just as a point of reference, my MP7 hits a 2.5" pole at 65 ft 7/10 times with no more than an EdGI 6.03 standard length barrel. There are no other changes to the gun except some valve tweaking for boosted FPS.  The Bucking is stock.

#24 bryanchang

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Posted 25 December 2012 - 08:51 PM

View Postgcw360, on 25 December 2012 - 08:15 PM, said:

OK, how about 70-100 ft?

Yeah I will go outside and take pictures of test shoot results if this stupid rain stops!! :innocent:

#25 gcw360

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Posted 25 December 2012 - 09:20 PM

View Postbryanchang, on 25 December 2012 - 08:51 PM, said:

Yeah I will go outside and take pictures of test shoot results if this stupid rain stops!! :innocent:
I hear you!  Like Rex wrote, I'm betting your gun will deliver a whole lot more performance that what you are stating in your post!  I look forward to the results.

#26 bryanchang

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Posted 26 December 2012 - 01:49 PM

View Postbryanchang, on 25 December 2012 - 08:51 PM, said:

Yeah I will go outside and take pictures of test shoot results if this stupid rain stops!! :innocent:

Alright, finally the rain has stopped for a bit, so as promised I went out and test shot two mags just for you guys! And here are the results.

Distance: I am not sure if I have 70 feet clearance but to give you an idea, here is an aerial photo of my test setup.

Posted Image

Test 1: The first mag (40 BBs) is to calibrate the red dot sight and to adjust the hop-up, so in the first 20-25 shots I didn't aim at the Target paper. I start to shoot at the Target when I only have around 15 rounds left:


Posted Image

Test 2: The 2nd mag has only 35 BBs and here are the results, I got one in the bullseye! :D

Posted Image

BTW, one thing I forgot to mention yesterday: I did modify the rocket valve to increase the fps.

Finally, here is the MP7 with the barrel extension.

Posted Image

Edited by bryanchang, 26 December 2012 - 03:29 PM.


#27 bryanchang

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Posted 28 December 2012 - 01:43 PM

View PostRexRocker AEG Dr, on 25 December 2012 - 08:21 PM, said:

Yea, like GCW asked, how accurate is the gun at longer distances?  Just as a point of reference, my MP7 hits a 2.5" pole at 65 ft 7/10 times with no more than an EdGI 6.03 standard length barrel. There are no other changes to the gun except some valve tweaking for boosted FPS.  The Bucking is stock.

I did a test and post the results above. What do you think?

#28 bryanchang

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Posted 28 December 2012 - 01:44 PM

View Postgcw360, on 25 December 2012 - 09:20 PM, said:

I hear you!  Like Rex wrote, I'm betting your gun will deliver a whole lot more performance that what you are stating in your post!  I look forward to the results.

Yep. I am quite happy about the results at least. :-)

#29 gcw360

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Posted 28 December 2012 - 02:48 PM

View Postbryanchang, on 28 December 2012 - 01:43 PM, said:

I did a test and post the results above. What do you think?
I think they are good!





Also tagged with one or more of these keywords: MP7, Tbb, Hop up, Accuracy, Upgrades

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