I've recently picked up a great looking MGC68 MP40 but; it comes with some limitations. The description of the model gun clearly indicated that it was a non firing item. Sadly, it really is!
Presently, a barrel block and barrel nut with a roll pin (with no rear window) serves to prevent an easy fix.
If I end up destroying the existing barrel nut, will a Marushin (early version) barrel nut properly snug up the MGC68 barrel to its receiver?
Does anyone know if the MGC68 barrel (with the front sealed) will pull away once the barrel nut is removed?
This particular model gun has an over sized recoil spring and does not have a serial number. The trunnion is blocked.
Help!
Planejack737 New Member
Number of posts : 35 Location / Country : Chicagoland USA Registration date : 2021-11-25
Subject: Marushin Barrel Nut vs. MGC Barrel Nut Thu Dec 02, 2021 1:45 pm
Chris, I’m new to this Forum, and have posted a couple of questions myself, one regarding the use of a Marushin Barrel Nut on an MGC MP40. Unfortunately this Forum may very well be dead, in that no one responds, not even a Moderator. Too bad. I will try to send you a PM, to see if you ever received any assistance from this group.
Jack
claymore Modelgun Perfectionist
Number of posts : 1246 Age : 64 Location / Country : London Registration date : 2008-09-07
planejack737, Well the forum is not dead but if no one has tried this then they cannot really advise. There are many reasons this forum goes silent for a while, the cap situation for one and unfortunatly although there a good number of members on this site there has only ever been a small amount who have contributed.
If we can help we will but i have never tried the barrel nut so i dont know, but i will see if i can find out.
Browning and oozlum like this post
Planejack737 New Member
Number of posts : 35 Location / Country : Chicagoland USA Registration date : 2021-11-25
Subject: Marushin MP40 Barrel Nut Fri Dec 03, 2021 4:01 am
Chris, OK, I have tried to thread the more accurate Marushin MP40 Barrel but onto the MGC 68 MP40 Trunion…and unfortunately it will not work. It’s too bad no one has tried this over the known deficiency of the MGC variant, and the many years that the Marushin (1984-85 I think it came out) has been around.
Regards, Jack
kickback Modelgun Perfectionist
Number of posts : 356 Location / Country : UK.Cambridgeshire Registration date : 2008-08-11
Subject: Re: MGC68 MP40 barrel nut. Fri Dec 03, 2021 9:27 am
Hi Guys, So, the Marushin barrel nut will not fit the mgc Mp40. The thread is a different size, and even after re threading on my lathe I found that the barrel collars ( half moons) will not meet the front of the nut to hold the barrel securely in place!. My option was to put the original barrel nut in the lathe and reshape it, it worked a treat
Thu Sep 13, 2018 1:29 am
