TSC Machine http://www.tscmachine.com did my barrel and is an advocate for using the factory-installed barrel absent unusual circumstances . 9mm is a relatively low pressure round and normally 94s don't have high round counts or any full auto fire. No need to pull or replace a barrel with a 50k round life when it is essentially like new. Mike at TSC can easily and safely cut your barrel on the gun and finish it with either a threaded or unthreaded 3 lug. You can also pick the thread pitch.
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