AR:K ST Upgrade kit With Apex2 Ready Barrel Autococker Threaded Barrels Sig Sauer as been known

Sig Sauer as been known for the highly advanced and unique rifles and there airsoft counterparts are no exceptions

and most trusted name in cyclone upgrades

Breakbeam eye and NXT Shocker compatible

Riptide Regulator: The Engineer's of DP invigorates the Riptide Regulator

This is also known by the original part number RT-03

AR:K ST Upgrade kit With Apex2 Ready Barrel Autococker Threaded Barrels Sig Sauer as been knownThis 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!