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Angry Gun Recoil Kit


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#61 akiraspeedstar

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Posted 30 January 2013 - 10:08 AM

Things I've determined so far...
  • My idea of why the AG kit damages your bolt carrier is not the cause as the overall length of the system, as the AG kit is about 3mm shorter than the OEM.

  • Others who thought that the force of the recoil and the bolt carrier flying forward hitting the impact block is not the reason either. As I have now ran about 1200 shots through my gun and there is no signs of damage on either peice.

  • I've done numerous full magazines and also numerous partial magazines 2-3BBs to let the bolt carrier impact the bolt stop and to inspect for any damage, it's locked back everytime and there is no signs of damage.

  • I've been able to shoot 123bbs (3 full magazines + 3 BBs) through a single fill of gas, though this was being shot with semi-auto and being shot roughly 2 shots per second. The bolt locked back everytime for the three magazines worth of shots.

  • Unless your magazine is warm, you will NOT be able to fire a complete magazine on full auto. At about 40 degrees, the magazine gave up at 14bbs. Previously when my magazines and gas were warm, I was able to get a full magazine out of the gun.

  • One possible cause of reduced travel is caused by increased pressure in the buffer tube. The drain ports, which on a real AR are meant for water drainage IMO also aid with cycling and venting. With the OEM buffer, you can feel the air from about 1' away from the buffer tube by pulling back on the charging handle. With the AG kit, the rear port is blocked and no longer functions, though the lower hole still does. This IMO, while probably not very significant, could cause increased pressure in the buffer and reduce the travel of the bolt when the magazine release pressure isn't at it's best.

        Real steel buffers do not have a full circle at the base of the buffer and are shaved flat in portions for I'd imagine venting purposes, especially when there's water in the tube. The OEM setup is completely round, though it also has two vent holes. I've drilled a small hole in the AG spacer plate and can now again feel the air vent from the rear of the buffer tube. I will conduct more testing post drilling.

        NOTE: I do not feel this is a significant reason, though I feel it's just adding another straw to the camals back.

  • One error could also be caused by improper installation, if you're not careful with the installation the spacer at the end can flip upside down, flip sideways, or the spring can come off from the spacer lip and seat incorrectly, both of these decreasing travel. If either of these occur, your bolts travel is reduced by roughly 3-4mm from the OEM setup. Also sometimes when the spacer isnt' installed correctly, you'll hear the spring bind (not always), which would cause issues with proper cycling. When it's installed incorrectly the bolt travels back JUST enough to allow the bolt lock to rise, but it won't have enought time to fully travel upwards. As I originally thought, the lack of full travel is the cause here.
I'll keep you guys updated.

Edited by akiraspeedstar, 30 January 2013 - 11:27 AM.


#62 niko_gpsy

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Posted 30 January 2013 - 10:36 AM

How about the weight of the buffer? When I got mine the first thing I noticed was the heavy buffer that does not absorb recoil and the bolt is literally smacking against it.

#63 akiraspeedstar

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Posted 30 January 2013 - 11:33 AM

The common damage is a rounded bolt carrier and/or bolt catch. After 1,200 shots there's no signs of damage with my bolt carrier or bolt catch. I still believe the main reason is lack of travel caused by the spring binding, the spacer being installed wrong, and/or low gas pressure unable to push the bolt back far enough (due to the weight).

Though one thing with the gas pressure, even with my gas pressure being so weak due to being low and so cold that my gun was shooting only 270fps, it STILL locked to the rear.

or my gun is blessed and was touched by God before it left the KWA Factory.

Edited by akiraspeedstar, 30 January 2013 - 11:53 AM.


#64 Rockhound117

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Posted 30 January 2013 - 03:05 PM

View Postakiraspeedstar, on 30 January 2013 - 11:33 AM, said:

or my gun is blessed and was touched by God before it left the KWA Factory.

Still going with that theory...

#65 gcw360

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Posted 31 January 2013 - 05:27 PM

View Postakiraspeedstar, on 30 January 2013 - 11:33 AM, said:



or my gun is blessed and was touched by God before it left the KWA Factory.

Shot me the serial number and I'll see if that was the case...

#66 Outlaw1995

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Posted 01 February 2013 - 11:05 AM

View Postgcw360, on 31 January 2013 - 05:27 PM, said:

Shot me the serial number and I'll see if that was the case...
So... I'm guessing serial number 3111 was touched by watermelon, right? lol JK :rofl1:

#67 akiraspeedstar

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Posted 01 February 2013 - 01:43 PM

Alright so I've done more and more magazines and still have yet to have any damage. I even had magazines with such little gas power that the bolt was traveling REALLY slow, but it still locked back. I belive I know the reason why the AG kit damaged everyone elses gun but not my own and no it's not because it's blessed by God haha. I'll have a review for the AG kit on my YouTube maybe tonight or tomorrow explaining it all.

Edited by akiraspeedstar, 01 February 2013 - 03:26 PM.


#68 akiraspeedstar

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Posted 01 February 2013 - 10:51 PM



#69 jaybirdritenour2

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Posted 02 February 2013 - 04:36 AM

View Postakiraspeedstar, on 01 February 2013 - 10:51 PM, said:



Did you have your bolt stop mod done already? Because that would make it engage much more contact on the bolt carrier which would make it less likely to wear out.

Edited by jaybirdritenour2, 02 February 2013 - 04:39 AM.


#70 ky2970

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Posted 02 February 2013 - 05:19 AM

I think something that angry gun users need to be sure not to do is to extend the buffer to increase the rate of fire. I know it's a perk to have a rapid firing gun but like akira said, it reduces bolt travel and will most likely cause damage. In addition, if you extend it to the point where the bolt catch can't engage, the several rounds where you dry fire will cause the bolt carrier to rub against the bolt catch.

#71 akiraspeedstar

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Posted 02 February 2013 - 07:24 AM

View Postjaybirdritenour2, on 02 February 2013 - 04:36 AM, said:



Did you have your bolt stop mod done already? Because that would make it engage much more contact on the bolt carrier which would make it less likely to wear out.

I do have the mod completed, though Boobie also had the mod completed and it damaged his bolt carrier after two magazines.

Edited by akiraspeedstar, 02 February 2013 - 07:25 AM.


#72 Outlaw1995

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Posted 02 February 2013 - 11:49 AM

That video made a whole lot of sense Akira... I may have to ask aaps59 if he wants to "lend" me his, so I can "lengthen" the buffer tube space to try this recoil kit. I'm a big fan of having the gun kick back at me. :)

#73 jaybirdritenour2

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Posted 02 February 2013 - 03:28 PM

View Postakiraspeedstar, on 02 February 2013 - 07:24 AM, said:

I do have the mod completed, though Boobie also had the mod completed and it damaged his bolt carrier after two magazines.

Same exact mod?

#74 Outlaw1995

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Posted 02 February 2013 - 04:24 PM

View Postjaybirdritenour2, on 02 February 2013 - 03:28 PM, said:

Same exact mod?
I believe the difference between boobie and akira's LM4s was that akira loosened his buffer tube one full rotation allowing just a little more space in the buffer tube, giving the bolt a little more time to return home giving the bolt stop a few extra milliseconds to rise completely.

#75 akiraspeedstar

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Posted 02 February 2013 - 04:49 PM

View Postjaybirdritenour2, on 02 February 2013 - 03:28 PM, said:



Same exact mod?

That's correct, both me and Boobie have modified the bolt stop in the same manner.

#76 jaybirdritenour2

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Posted 02 February 2013 - 06:17 PM

Then I guess we just need a spacer that is a little thinner than the one supplied. And a hole in the center. Wonder if any of the G&P speed buffer pieces will fit the bill.

#77 akiraspeedstar

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Posted 02 February 2013 - 06:24 PM

Yeah you could also use the buffer tube spacers that they sell for GBBRs.

#78 The Nutty Professor

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Posted 03 April 2013 - 10:24 AM

Necro kinda. Just a thought. One of my other hobbies is golf. When you like a certain club but need a little more swing weight you add it with a stick on weight. No you can't add a stick-on but you can drill into the buffer and glue weight into that hole. Slowly add weight until you get the feel you want. Of course turning it into Swiss Cheese isn't the right answer either. Like I said just a thought.

#79 akiraspeedstar

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Posted 03 April 2013 - 11:30 AM

OEM Buffer? Yeah I considered it, though I never actually got around to it.

#80 BeachEMT

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Posted 03 April 2013 - 01:50 PM

Only reason I would advise against that is the OEM buffer and buffer lock are plastic. The more it weighs, the more force required to stop it. Increasing the weight would likely cause the buffer lock to break and the buffer to shatter (at least around the weighs).




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