IIRC, the barrel liner slid in, and the muzzle end had a thread, retainer nut larger than muzzle threaded over the liner. And lets face it- the 4mm was not a powerhouse.
They made them for Lugers, Broomhandles, some of the Astra pistols- and the Swiss K-31 rifle- among others.
What we have here is... failure- to communicate.
Last edited by c3shooter; 04-11-2010 at 03:10 AM.