AR:K ST Upgrade kit With Apex2 Ready Barrel Bolts Inner Barrel: ~330mm

Inner Barrel: ~330mm

Fits (among others)

Adjustable dwell

the semi-automatic Custom Pro Marker with E-Trigger also features a quick-release feeder elbow

300 mah charger (Battery charge time: 4 hours)

AR:K ST Upgrade kit With Apex2 Ready Barrel Bolts Inner Barrel: ~330mmThis 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!