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SIR system for KM-4a1


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#1 brooklyn468

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Posted 28 October 2008 - 04:40 PM

I have been looking for railing for my KM-4a1. I would like an SIR (NOT a CASV) that can store a small- type battery. I am aware of the BF CASV and I will outright refuse to buy anything made by DBOY. I also don't really care about the weight of it, I just want some metal rails.

I recently rewired my gun back to the front. I was sick of trying to find a battery that one of my buddies had that would fit in a crane stock, however, because I like the weight of the crane stock, I kept it (and the fried battery I have for it) on my KM-4. On my last airsoft outing, I used my buddies battery, in case you cared ;)

Does anyone know if there are any SIRs I could buy for my KM-4a1, and if you do know, could you post a link? And does anyone know if the KM-4 Tactical's SIR will be available in the pro shop? Also, if they are, would they fit?

Thanks for your help, everyone  :)

#2 Guest_allizard_*

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Posted 28 October 2008 - 10:56 PM

View Postbrooklyn468, on Oct 28 2008, 05:40 PM, said:

I have been looking for railing for my KM-4a1. I would like an SIR (NOT a CASV) that can store a small- type battery. I am aware of the BF CASV and I will outright refuse to buy anything made by DBOY. I also don't really care about the weight of it, I just want some metal rails.

I recently rewired my gun back to the front. I was sick of trying to find a battery that one of my buddies had that would fit in a crane stock, however, because I like the weight of the crane stock, I kept it (and the fried battery I have for it) on my KM-4. On my last airsoft outing, I used my buddies battery, in case you cared ;)

Does anyone know if there are any SIRs I could buy for my KM-4a1, and if you do know, could you post a link? And does anyone know if the KM-4 Tactical's SIR will be available in the pro shop? Also, if they are, would they fit?

Thanks for your help, everyone  :)

It's a lot of work to fit a SIR on M4A1.  In fact, you can't just install it on a normal receiver.  However, KWA is considering to offer the complete upper receiver for the M4 S tactical so folks like you don't need to worry about installing.  Just swap out the top receiver between m4a1 or S tactical.  You will find them on the proshop soon.

#3 brooklyn468

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Posted 29 October 2008 - 03:58 AM

View Postallizard, on Oct 29 2008, 01:56 AM, said:

It's a lot of work to fit a SIR on M4A1.  In fact, you can't just install it on a normal receiver.  However, KWA is considering to offer the complete upper receiver for the M4 S tactical so folks like you don't need to worry about installing.  Just swap out the top receiver between m4a1 or S tactical.  You will find them on the proshop soon.

Good! Do you know when? And do you know how much this would cost?

#4 Guest_allizard_*

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Posted 29 October 2008 - 08:31 AM

Around $200 for a complete upper receiver.  Personally I think it's a steal.   It will be offered in the ProShop soon, probably before shopping season.

#5 brooklyn468

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Posted 29 October 2008 - 05:21 PM

View Postallizard, on Oct 29 2008, 11:31 AM, said:

Around $200 for a complete upper receiver.  Personally I think it's a steal.   It will be offered in the ProShop soon, probably before shopping season.

That is great news! Thank you!  :)

Just another question, what makes the m4a1 upper reciever different than the KM-4s?

#6 Guest_allizard_*

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Posted 29 October 2008 - 11:05 PM

The rails on the top receiver is different.  And I don't mean the SIR.

#7 brooklyn468

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Posted 30 October 2008 - 03:22 PM

So if I bought the G&P RAS 2 Long Kit, it would not fit on my gun? Conviently, the one review for it was by a guy with a KM-4, but he didn't specify which kind :lol:

http://www.airsoftgi...roducts_id=2187

I took off my DBOY SIR and it fit on my KM-4a1, so I am assuming this would fit if it had the same fitting mechanism. Can anyone tell me if this is true?

Thanks, everyone  :)

Edited by brooklyn468, 30 October 2008 - 03:23 PM.





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