jessmc696 Posted October 28, 2006 Share Posted October 28, 2006 Well, I just got my new M1 18 1/2" barrel with the ghost ring sight ( after a 6 month wait) , however just noticed that the new barrel has 2 major differences from the standard m1 barrels. first is the barrel retention ring that slips into the forearm it is 1/2 longer and a barrel band of some sort on the exterior towards the chamber. and thus the original forearm does not fit. My S90 M1 has a serial no.M490xxx. I did some research and ordered a forearm from Brownells but its for a post m155xxx. My question is do I have a post or pre barrel? It bothers the crap out of me to wait 6 months for the barrel only to find out the dang forearm doesnt fit.... Quote Link to comment Share on other sites More sharing options...
d Posted October 29, 2006 Share Posted October 29, 2006 I do not know how to help but try checking out this parts diagram: ftp://ftp.benelli.it/Public/UM_SPL/G0191801.PDF and this website: http://www.e-gunparts.com/products.asp?chrMasterModel=4150zM1%20SUPER%2090%20MILITARY%20AND%20POLICE and see if you can figure something out. Good luck. Quote Link to comment Share on other sites More sharing options...
jessmc696 Posted October 30, 2006 Author Share Posted October 30, 2006 Thanks for the diagram, didnt say which one would fit. Went and looked at a friend's M1 with the 18 1/2 RS, his barrel does not have that barrel stop looking thing, Hopefully the forearm I ordered will fit, otherwise gonna have to break out ye ol dremmel........ Quote Link to comment Share on other sites More sharing options...
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