ICS M4A1 Loose RIS

dpvu · April 13th, 2008, 23:40

Hey guys,

I recently purchased an ICS M4A1 RIS and everything's great except the RIS is really loose. I can move it 2mm or so back and forth on the top and bottom. I read the ICS M4 Bible thread and it does mention a loose RIS but I'm still not really sure how to fix it. Something about adjust barrel length?

mcguyver · April 13th, 2008, 23:43

Loosen the screws on the mid-lenght portion of the barrel, and turn the front half counter-clockwise to shorten it. Try it a few times to get the length just right, then the RIS won't be so loose.

But, the rear handguard ring spring is not very strong, so it will always exhibit some movement, no matter what you do.

Renegade) · April 13th, 2008, 23:59

Quote:

Originally Posted by mcguyver

Loosen the screws on the mid-lenght portion of the barrel, and turn the front half counter-clockwise to shorten it. Try it a few times to get the length just right, then the RIS won't be so loose.

But, the rear handguard ring spring is not very strong, so it will always exhibit some movement, no matter what you do.

Would that work on any ICS? I always noticed my ICS handguards were gay and lose no matter what..

mcguyver · April 14th, 2008, 00:01

ICS M4 or varient thereof, yes. I've had to do this not only for the stock handguards, but also with some aftermarket ones as well.

MrEvolution · April 14th, 2008, 00:09

I have this same problem with my handguard, but im confused on your solution.

aikidodave · April 14th, 2008, 00:14

Get the Knights arm's RIS from huang.Verry solid and no movement

Renegade) · April 14th, 2008, 00:18

Quote:

Originally Posted by MrEvolution

I have this same problem with my handguard, but im confused on your solution.

No you have the same problem as its my old gun

Im jsut curious to see if this would work to tighten that handguard up lol.

dpvu · April 14th, 2008, 00:31

Also, how do I remove the RIS cover? Sorry, my M4 has no manual and the online one I found is not for the RIS version.

Non Credo · April 14th, 2008, 01:23

well you bought an ics. I dont care if I get some kind of infraction for this or whatever, but I mean, theres your problem right there.

dpvu · April 14th, 2008, 01:50

That's your opinion and that's great. I got it at a very good price because it was second-hand and despite the RIS problem, I have no regrets. The thing is sturdy, heavy and one fine airsoft rifle.

dpvu · April 14th, 2008, 03:31

I got the RIS covers off by the way. I opened the RIS up and see what I need to do but unfortunately don't have the right hex tool.

Mods can close/move this thread as the problem is solved.

aikidodave · April 14th, 2008, 23:31

ICS is way better then most AEG out there,Just under systema,Split mech-box,Full metal ect...
2 min to swap out upper and upgrade.How long dos it take to swich out a mech-box for a TM.There is no need to go any further.

Congrats on getting a ICS dpvu
If you need help with it let me know.

dpvu · April 15th, 2008, 00:02

Thanks Aikidodave. I have everything figured out and the gun is working great. The only thing I can think of that needs to be done is to fix that RIS which is more of a small annoyance. The hex screws are so small and I have a set but there's one that's too small and one that's too large so I can't shorten the barrel yet.

I'm going to chrono it with a laptop and a mic to get a rough FPS estimate.

Jray · July 25th, 2010, 08:15

what are good RIS hand guards that will fit on ICS m4 that doest need any modification or Delta ring replacement, anyone knows? tyvm

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April 13th, 2008, 23:40	#1
dpvu Trader rating Join Date: Mar 2008 Location: Calgary	ICS M4A1 Loose RIS Hey guys, I recently purchased an ICS M4A1 RIS and everything's great except the RIS is really loose. I can move it 2mm or so back and forth on the top and bottom. I read the ICS M4 Bible thread and it does mention a loose RIS but I'm still not really sure how to fix it. Something about adjust barrel length?

April 13th, 2008, 23:43	#2
mcguyver Trader rating Join Date: Aug 2005 Location: Northern Alberta	Loosen the screws on the mid-lenght portion of the barrel, and turn the front half counter-clockwise to shorten it. Try it a few times to get the length just right, then the RIS won't be so loose. But, the rear handguard ring spring is not very strong, so it will always exhibit some movement, no matter what you do. __________________ Age verifier Northern Alberta Democracy is two wolves and a sheep discussing what's for dinner. Freedom is the wolves limping away while the sheep reloads. Never confuse freedom with democracy.

April 14th, 2008, 00:01	#4
mcguyver Trader rating Join Date: Aug 2005 Location: Northern Alberta	ICS M4 or varient thereof, yes. I've had to do this not only for the stock handguards, but also with some aftermarket ones as well. __________________ Age verifier Northern Alberta Democracy is two wolves and a sheep discussing what's for dinner. Freedom is the wolves limping away while the sheep reloads. Never confuse freedom with democracy.

April 14th, 2008, 00:14	#6
aikidodave Classifieds Access Removed Trader rating Join Date: May 2006 Location: alberta	Get the Knights arm's RIS from huang.Verry solid and no movement __________________ Shoot first ask questions later

April 14th, 2008, 00:31	#8
dpvu Trader rating Join Date: Mar 2008 Location: Calgary	Also, how do I remove the RIS cover? Sorry, my M4 has no manual and the online one I found is not for the RIS version.

April 14th, 2008, 01:23	#9
Non Credo Trader rating Join Date: Aug 2007 Location: couch	well you bought an ics. I dont care if I get some kind of infraction for this or whatever, but I mean, theres your problem right there. __________________

April 14th, 2008, 01:50	#10
dpvu Trader rating Join Date: Mar 2008 Location: Calgary	That's your opinion and that's great. I got it at a very good price because it was second-hand and despite the RIS problem, I have no regrets. The thing is sturdy, heavy and one fine airsoft rifle.

April 14th, 2008, 03:31	#11
dpvu Trader rating Join Date: Mar 2008 Location: Calgary	I got the RIS covers off by the way. I opened the RIS up and see what I need to do but unfortunately don't have the right hex tool. Mods can close/move this thread as the problem is solved.

April 14th, 2008, 23:31	#12
aikidodave Classifieds Access Removed Trader rating Join Date: May 2006 Location: alberta	ICS is way better then most AEG out there,Just under systema,Split mech-box,Full metal ect... 2 min to swap out upper and upgrade.How long dos it take to swich out a mech-box for a TM.There is no need to go any further. Congrats on getting a ICS dpvu If you need help with it let me know. __________________ Shoot first ask questions later

April 15th, 2008, 00:02	#13
dpvu Trader rating Join Date: Mar 2008 Location: Calgary	Thanks Aikidodave. I have everything figured out and the gun is working great. The only thing I can think of that needs to be done is to fix that RIS which is more of a small annoyance. The hex screws are so small and I have a set but there's one that's too small and one that's too large so I can't shorten the barrel yet. I'm going to chrono it with a laptop and a mic to get a rough FPS estimate. __________________ JG HK416 KWA USP

July 25th, 2010, 08:15	#14
Jray Trader rating Join Date: Jun 2010 Location: Winnipeg MB	what are good RIS hand guards that will fit on ICS m4 that doest need any modification or Delta ring replacement, anyone knows? tyvm

ICS M4A1 Loose RIS

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