Semi auto tube for the STEN MK3

This tube has a reduced inner diameter with the outer diameter matching an original. Fully compatible with our Sten semi auto kit (Mk3SAK) and (Mk3VSAK) and cannot accept an original bolt.

The ends have been bored out to accept bushings (MK3BSET)

The high-quality template includes the necessary critical dimensions as well as both standard and vertical feed magazine options. Multiple cutout designs are included: Original (non-vented), Vented, and Flames. 

A milling machine is recommended to finish this tube; however, it is possible to finish it with a dremmel tool. 

You may need additional USA made parts in order to be R922 compliant. This tube is not a finished receiver; the buyer can make a semiautomatic receiver from it. No FFL required. All ATF rules apply.

Note: MIG or TIG welding is required for assembly.

Limited quantities available and will continue to restock

Temporary limit 1 per customer per 6 months (you can still mix and match Mk2, Mk3, and Mk5 tubes)