AR:K ST Upgrade kit With Apex2 Ready Barrel Spyder Threaded Barrels Just smart and simple engineering

Just smart and simple engineering with the players needs in mind

Stabilizes marker for improved accuracy

The Zick2 is the next natural progression from the original Zick

Integrated Audible Beeper for Alarms and Actuations

AR:K ST Upgrade kit With Apex2 Ready Barrel Spyder Threaded Barrels Just smart and simple engineeringThis upgrade kit turns your standard AR: K into the newer very limited release ST AR: K. These are very limited and won't be around for long as we are the only store in the U. S. to receive these. The barrel is a . 691 bore size and is Apex2 ready. The shroud has 4 Picatinny rails on it that can mount a variety of items. Don't let this awesome upgrade slip by!