AK47frizzle
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- Apr 5, 2013
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King Arms PDW SBR In-depth Review
- Thread starter AK47frizzle
- Start date
AK47frizzle
Members
- Apr 5, 2013
- 1,453
- 468
- Thread starter
- #2
Found out a crucial problem. It does not take these style hop units very well:
View attachment 50695
The stock king arms one looks very similar to this:
View attachment 50696
The reason why prowin style does not work very well is that the magazine can move back and forth a bit in the mag well. If it is fully rocked backwards, the bbs don't feed properly and results in low fps - I was wondering why I had 100-150 fps on a 0.25g sometimes after installing one of those. The reason why the stock one works is that the square base plate at the bottom of the hop sits lower compared to the prowin style. It is also wider which limits the rocking too. I guess the solution is just to leave it unless you are buying an upgraded version of the same style. I personally prefer the rotary system of the prowin style. However, I guess I will have to settle with this.
Mine currently works like this after upgrades:
30 rps fuuuuunnnn
View attachment 50695
The stock king arms one looks very similar to this:
View attachment 50696
The reason why prowin style does not work very well is that the magazine can move back and forth a bit in the mag well. If it is fully rocked backwards, the bbs don't feed properly and results in low fps - I was wondering why I had 100-150 fps on a 0.25g sometimes after installing one of those. The reason why the stock one works is that the square base plate at the bottom of the hop sits lower compared to the prowin style. It is also wider which limits the rocking too. I guess the solution is just to leave it unless you are buying an upgraded version of the same style. I personally prefer the rotary system of the prowin style. However, I guess I will have to settle with this.
Mine currently works like this after upgrades:
30 rps fuuuuunnnn
Last edited by a moderator:
Cipher-032
Members
- Feb 26, 2011
- 285
- 76
Thanks for the indepth look.
I had a Prowin unit out of my G&G, with a R hopped Prommy barrel. I chopped it down, and fit it. I did get the odd misfeed, but I found after lubing the magazines it works a treat now.
Doing that will allow a small drop in FPS, hops .28's like a champ, and will allow better use of the suppressor or a tracer unit.
I really like how short it is, and how light and nimble it is. But I really must buy a high torque motor for it. So im debating a SHS high torque or a Nuprol one to keep costs down.
View attachment 50865
I had a Prowin unit out of my G&G, with a R hopped Prommy barrel. I chopped it down, and fit it. I did get the odd misfeed, but I found after lubing the magazines it works a treat now.
Doing that will allow a small drop in FPS, hops .28's like a champ, and will allow better use of the suppressor or a tracer unit.
I really like how short it is, and how light and nimble it is. But I really must buy a high torque motor for it. So im debating a SHS high torque or a Nuprol one to keep costs down.
View attachment 50865
LoneTactix
Members
- Oct 4, 2018
- 72
- 3
I just bought one of these and test fired it last night. It seems to shoot well enough, but the consistency of accuracy seemed a bit off - some dip a bit, some fly straight as an arrow and some drift up a bit. I am wondering if this is normal for the gun as stock or whether the hop is a bit poo, or maybe I just don't target shoot much as I just skirmish my guns and don't really analyse them in depth.
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