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M4 upgrades?


Upgrades & Modifications

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Old May 11th, 2013, 18:21   #1
Join Date: May 2013
Location: Ontario
M4 upgrades?

Hello everyone

I'm looking to upgrade my gun to help it shoot better and get a higher fps. What's a couple upgrades I can do, external and internal. Also roughly the cost.

I have a g&p m4a1 carbine. Full metal AEG
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Old May 14th, 2013, 14:35   #2
Capt.Spaulding's Avatar
Join Date: May 2012
Location: Bowmanville, ON
There are a lot of posts on this subject so poke around. #1 question is what FPS do you want?

Indoor CQB: 350fps MAX on .20's
Outdoor: 400fps MAX on .20's
Outdoor as a Semi-Only AEG in a DMR Role: Usually 450fps MAX

You need to decide where you are going to play as most of those numbers I listed are pretty consistent across the spectrum of game organizers.

As a rule of thumb FPS improvements are predominently done by spring change however, spring guides, tightbore barrels, spacers, air seal quality will add/subtract some FPS.

IMO for a quality gun out of the box which a full metal G&P is all you should do is change to a quality tighbore barrel, add a quality hopup and hop up rubber and get a good quality spring and that is all it should need until it breaks. Do not fixate on the 400fps just get it close to where you need and have fun.

I like Modify parts as they are overall good bang for the buck but there are lots of good companies making quality parts and all seem to have their best offerings.
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Old May 14th, 2013, 15:06   #3
NANA's Avatar
Join Date: Apr 2011
Location: Whitby, Ontario.
^ what he said.
Play with Honor. Call your hits.

Nothing just happens, You always have to strive...
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Old May 14th, 2013, 15:43   #4
Not Eye Safe, Pretty Boy Maximus on the field take his picture!
ThunderCactus's Avatar
Join Date: Feb 2007
If its a brand new G&P, #1 before you use it, get it properly shimmed
Then hop rubber and barrel
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