Mak was modded by myself around 10 yrs ago, the barrel unscrews so you can put it in a lathe and turn the thread
bluing has worn off since, but the silencer is very effective
http://i894.photobucket.com/albums/a...ps4ab22f21.jpg
http://i894.photobucket.com/albums/a...psa5b9537c.jpg
http://i894.photobucket.com/albums/a...ps541b2e0a.jpg
ATB Grego