Post by Madmike A nice review and a nice gun for sure, exactly my cup of tea. I knew that no real stock assemblies fit the MGC AR-15s, neither the Marushin AR-15s. The reasons are different measures and threads. Of course the original buffer spring can´t be used as it would be too stiff for the weak caps. Sometimes people feel the wish to replace the stock on the Marushin XM177E2 (only 2 position, but rather good copy of the original despite being plastic) or on the MGC AR-15s (here the stocks wobble far too much and make a rather cheap impression on that otherwise great gun).
But I managed to put a real AR-15 no-name Taiwan made stock on my M733 (here the tube seems to be slightly thinner than the tube used on the M4. The M4 can´t take a real stock without modification) which does no longer wobble. It fits really good and feels and looks much better. I like the dull finish and the more modern design (MGC put the XM177E1/E2 stock on their M733, but the real M733 normally has the later version 2 or 3 stock).
Here is the M733 out of the box, note the shiny stock:
Here is the same gun with Taiwan made no-name stock for real AR-15s:
And I managed to fit real M4A1 "over size" handguards to my M4A1. (I have already done a short review about that conversion). But the standard handguards look all right on your short barreled M4A1 Commando. I am quite sure that only the 14,5 inch barrel Carbine has the oversized hand guards.
Regarding the issue with the gun failing to chamber the rounds when pulling back the charging handle, I am really bewildered as I have never heard of the problem before. Sometimes when firing caps a cap has not enough power to push the bolt back far enough. But that should not be a problem when chambering by hand. Did you already shorten your buffer spring? Or did you contact your seller?
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Cerwyn
Hobby collector of Replica model guns and Militaria.
also member of Living History Reenactment Groups.