Description
A&K STW (PTW) Stock tube
This is a replacement stock tube for the A&K STW, a PTW-style AEG. The stock tube attaches to the rear of the lower receiver and carries the stock, so it needs to be straight, secure and in good condition.
A&K’s STW is a PTW-style AEG, following the layout of the Systema Professional Training Weapon (PTW), a platform known for its modular internals and crisp, electronically controlled trigger response. PTW-style rifles use their own internal design, so parts made for standard Version 2 M4 AEGs generally do not interchange with them.
Why replace it
A bent or damaged stock tube affects how the stock slides and locks, and can leave the rear of the rifle feeling loose. On PTW-style rifles the stock tube typically also plays a part in housing the battery, so a good tube matters for more than looks.
Before you buy
The length, material and whether a castle nut or end plate are included are not stated in the listing. Confirm compatibility with your rifle and stock before ordering.
Fitting
Remove the battery first, then remove the stock and the old tube, noting how any wiring is routed. Fit the new tube, tighten it securely and refit the stock. Check that no wiring is trapped.
Key features
- Stock tube for the A&K STW
- PTW-style platform
- Replaces a bent or damaged tube
- Restores a solid stock fit
- Factory A&K part
Compatibility
For the A&K STW PTW-style platform. Confirm compatibility with your rifle and the stock you intend to use before ordering. Stock and battery are not listed as included.
Care and maintenance
Wipe the tube clean and keep a light film of suitable oil on any bare metal. Check the tube remains tight to the receiver. When fitting a battery, route wires so they are not pinched by the stock.
Who is it for?
This stock tube suits A&K STW owners replacing a tube that has been bent or damaged, and technicians rebuilding an STW from parts.
Please note: Stock and battery are not listed as included. Confirm compatibility before ordering.
