CRB & Threading

Just in case you wanted to thread a CRB/SO 16" barrel, or cut down a CRB to SBR length and then thread it, here are a few nuggets:

1. Any alteration of the Vector not performed by KRISS USA automatically voids the owner's lifetime warranty.

2. KRISS USA's charge to convert the CRB/SO 16" firearms to a 5.5" SBR with threads includes an upgrade to a 16mm barrel diameter from the stock 15mm barrel. They have found through extensive testing that a 15mm barrel does not provide adequate strength for the threads. Therefore, according to the manufacturer, you are absolutely creating a safety hazard if you thread a 15mm barrel.

3. KRISS USA charges $250 to completely disassemble the firearm, install, test and certify the new larger barrel plus $150 for the threads and cap, plus the return shipping.

The service and price are not apparent on their website, so contact them directly for the most current info.

Ammunition - WWB .45ACP

The "Winchester White Box" (WWB) commonly purchased at Walmart has been on and off the approved ammo list. (It still appears in the posted Operators Manual PDF.) The advice I was given was "be careful" with it. In early January 2010, of the 2000 (or so) Vectors shipped out 12 of them have been sent back to KRISS USA for a squib round in the barrel. Of the 12, 10 of them were WWB.