AGM GBBR M4 good base for GBBR platform?

[G36 FTW]

My AGM was pretty decent, but the hop-up was a POS and the buffer tube came loose. If you get an Npas, new hop up, buffer tube wrench and a few extra magazines along with the rifle it should be skrimishable enough (mine was, but it still needed some work).


As said before, GBBRs are a lot of work and are hard to field successfully. I went through a WE Scar and the AGM GBB M4 before I figured out GBBRs weren't for me; expensive trip that was...

[Miracle]

I'm in your position, only with a pretty high budget... From what I've gathered on gasguns.info, they recommend getting a lower end brand like AGM and upgrading the balls out of it to get yourself knowing how it'll work.

You need to buy a lower end platform, and upgrade it YOURSELF. Trail and error. Nothing is more important when using gas guns then knowing how to do the work on your own. The important part isnt the price, its finding out how the system works and how to properly maintain and smith it. Once you're comfortable with it, then thats when you buy the expensive toys.

Nobody's first AEG should be a PTW. The same goes for gas rifles.

[Sho Nuff]

What are the best things to do in order to "upgrade" a gbbr

[KA-BAR]

i have a WE M4 for sale.

see classifieds.

[Miracle]

What are the best things to do in order to "upgrade" a gbbr

Depends on what you are looking to do and what system you have.

If you have a WE, there are really only a couple things you can do. You can buy and install an NPAS (very different from the WA NPAS) to adjust your fps, because using CO2 mags for cold weather in a WE AWSS can get you shooting around 550 without it. Then you can really only change your furniture. The recievers are 1:1 so they are RS compatible, although there are only a couple companies that make internals and compatible lower recievers for WE (TSC, Bomber, AG, WE) so you really dont have a lot of flexibility there. All in all, the WE is reliable as hell out of the box but you have to disassemble the weapon to adjust your fps, and upgrading it to be anything more than a stock rig is a pain in the a$$. There just arent enough people out there making aftermarket parts for it.

If you have a WA, its a different story. There's so much you can do with an M4 based on the WA system that its ridiculous. The only problem is that you will need to do a lot of those upgrades before it is as reliable as one of the other GBBR systems. Figuring out what you need should be based around what model your base gun is. For example, stock AGMs have a metal body, a decent buffer weight and spring, a good solid heavyweight bolt and their trigger group (not the firing assembly, just the trigger group) is heavy and solid. Their inner barrels, hop ups, bolt catches, BCGs, and spring sets are crap. For an AGM, I would reccommend a RA Tech Aluminum or 1/16" ABS Npas, an RA Tech, PDI, EdGi, or JDT inner barrel and CNC'd hopup chamber, and a JDT blue rubber (130%). Then I would say buy all steel guts (bolt catch, mag catch, bolt stop base, firing assembly, trigger group, hummer, fire selector, buffer lock). These parts are made best by G&P WOC and Inokatsu, but AABB, 2Roy and 5KU make them as well. Finally, you need to upgrade your recoil springs, trigger springs, and your buffer weight to 150% springs, this will give you recoil equivalent to an Inokatsu, although you will not be able to sustain full auto fire at this stiffness because you'll be using the gas in your mag quicker to get the bolt to cycle harder. G&P WOC makes the best recoil springs in my opinion. Inokatsu also makes amazing springs, but they are too hard for anything or than an inokatsu to take (Katsu's run off of red gas).

If you have a stock WA, get a metal body, and then upgrade what is mentioned above. If you have a G&P WOC, you really only need to upgrade the inner barrel, hopup, and BCG to make it really skirmishable. If you have a Bomber, Vipertech, or an inoktasu, you might just wanna upgrade the inner barrel and hopup, otherwise you're absolutely golden once you find mags.

If you do all that you will have an extremely hard shooting, realistsic feeling, strong kicking reliable gun that will have to be run off of propane. After you have the gun, you'll need to pick up a crapton more magazines, and you need to make sure they can handle green gas and propane. AGM mags suck, and will leak within a day or too. WA stock mags suck as well, but the WA reinforced mags are some of the best on the market. G&P mags are a good middle ground, although I personally prefer GHK. If you have the money, PROWIN V.2 mags are the premium, they can hold anything, up to and including red gas. They are crazy expensive though, even used. They might cost more than your base gun and all your uogrades if you're using an AGM.