What M203 will fit a Marushin M16A1+How to fit it??

Been offered an Airsoft M203(no handguards) and wa swondering please if anyone which model/make would be compatible with my Marushin M16A1(or MGC) and how do they fit/attach?

Thanks

I did manage to fit a G&P (i think) airsoft 203 to a Marushin M16, as it was a long time ago i can't remember exactly how i did it but it wasn't a straight bolt-on. Cerwyn has it now so perhaps he can jog my memory

8ace

you normally have to add extra spacers to the fixing points as modelgun barrels are a lot thinner than airsoft barrels and the things can flop about.


Having the M203 on a marushin normally means a lot of fiddling to get the detonator pin out to clean too.

Best to fit a rail system and bolt a 203 to that

DOC

Hi,
I have fitted a G&P M203 on my MGC M4, the only mods that i had to do where
remove the bayonet lug on the fore sight so that it would clear when attaching.
The only other mod was to linish (only a small amount) the inner finger parts of
the M203 that locates onto the chamber of the rifle.
The only other thing to check when fitting is to make sure that the barrel nut lines
up and locates with the nipple on the M203 so that it can not rotate around.

Hope this helps
Bow.

Thanks everyone for your advice and tips.

Cleaning the detonator pin is no big deal as i never fire any of my PFC guns as the rounds are a pain in the ass to clean and ive never had a gun yet that doesnt jam when shooting so i now dont bother.

As i bought my Marushin a few years ago new it cost me a fair bit and would love to sell it and just buy an Airsoft m16 with 203 but i would lose a lot of money on my Marushin M16 so i guess ill stick with it.

Have found 2 M203s at decent prices-one i think is made by G+P Knights Armaments,other i think is a Sun Project??-All this Airsoft is new to me!!!

Thanks

Ah thats how i did it. For some reason i deleted my pictures of it

Cerwyn wrote:

Hi Richard,

here's a photo of the fitting arrangements for the M203 launcher on my Marushin
M16...

Hope this helps

Nice one Cerwyn,looks very similar to the Airsfoft ones ive seen so will probably give one a try-problem is they dont come with any handguards for the M16 itself!!!!

Hi Richard,

This one is an Airsoft gas powered one. I bought the gun complete off 8ace a long time ago now.
I didn't realise the handguard doesn't come with the launcher though, no doubt a bit of searching through Airsoft accessories will turn them up

Yep the handguard was separate and (IIRC) it was the long one

I the reason I got the G&P one was that it had all of the correct markings and is all metal (except the ribbed launcher grip) but that was a few years ago so things might have changed

8ace

Hello Richard,

I found this handguard from a company i've used in the past, there prices are quite good.
http://www.ebairsoft.com/m203-upper-handguard-long-version-black-p-1531.html

Hope it is of some help.

Bow wrote:

Hello Richard,

I found this handguard from a company i've used in the past, there prices are quite good.
http://www.ebairsoft.com/m203-upper-handguard-long-version-black-p-1531.html

Hope it is of some help.

Many Thanks for the link.

Cheers

Jut had a 203 delivered and while it seems very nice,solid it doesnt look like the one fitted to Cerwyns gun so hope it will fit

No make on it just very nice looking official Colt markings so no idea of maker.

Will post pics up as soon as i can.

Pics of my lovely new all metal 203

The guy who sold it to me reckons its a Sun Projects M203??

Problems ive encountered is that the front attachment is too big but im sure that some tape around the barrell or fitting a small piece of thicker pipe over the barrel should sort this out.

2nd problem is there is nothing at the chamber end to stop the 203 from rotating.Looks as if it should locate into the 2 cutouts on the 203 itself but of course on the Marushin there is nothing so what would you guys suggest please??

I was thinking of maybe supergluing or aralditing a couple of strips of plastic/wood either side of the barrel to locate into the cutouts in the launcher???













Also is the Marushin barrell strong to cope with the extra weight as this is quite heavy??

Got a new pair of i believe G&P? Airsoft M203 handguards and the buggers are too long to fit so now have 2 problems,trying to get the Launcher itself and now the handguards to fit-why did i even think of doing this???

Not turning out to be an easy conversion this is it

Are the handguards too long by much I'm sure the barrel on my Marushin M16 has been threaded out as far as it can go to give a little more length.

Would that help

Cerwyn wrote:

Not turning out to be an easy conversion this is it

Are the handguards too long by much I'm sure the barrel on my Marushin M16 has been threaded out as far as it can go to give a little more length.

Would that help

Before trying to file away a bit of the plastic either end of the handguards ive unscrewed the barrell and they fit but dont realy feel happy about having the barrell like that given the extra weight that it will have to hold if i can figure out how to attach the 203 itself properly.

Im sure ill get there in the end but i have quite a short fuse when things start getting tricky or go wrong

Phhhhhhhhhhhhew,after a couple of hours,much swearing,much anger i at last managed to fit the airsoft M203 to my Marushin M16A1.

One hell of a nightmare job but well worth it as im now a very happy chappie

PS-didnt help that i had a stinker of a hangover

Fantastic job....dare I say a work of art

Quote :

PS-didnt help that I had a stinker of a hangover

Everybody needs some preparation before undertaking a project like this

8ace

That DOES look good Richard, well worth the effort and hangover

Your photos show a bolt on rear sight attached to the carry-handle... my own version doesn't have one, could you possibly post up another couple of photos of that please
Where did you find that sight and dare I ask, was it expensive please

Will post some pics as soon as i can.

The sight is an original US quadrant sight issued with the M203 but not often seen being used in Vietnam.

The one i have is in vg used condition but i did(now sold) have a mint unissued one as well.

Came from the States a few years ago but havent seen any now for a while.

Final finishing touch is a side mounted front sling swivel as fitted to original M16/M203s-just hope it will fit

Great job Richard, that looks the dogs danglers now that you have finished the conversion ,all that hard work certainly paid off.....great job.

Kickback

kickback wrote:

Great job Richard, that looks the dogs danglers now that you have finished the conversion ,all that hard work certainly paid off.....great job.

Kickback

Cheers,certainly was worth all the hassle.

It isnt perfect-203 isnt 100% secure to say use if i was a reenactor but perfectly sturdy enough to display and handle etc so am chuffed with it as its always something i wanted as sets it aside form std M16s