Increase the capacity of the SHS Straightpull STP12. No modifications required. Fabricated by our D class licensed manufacturing gunsmiths in Adelaide. Lifetime warranty and free standard shipping in Australia.
To install, simply remove the factory magazine nut and screw in the ICEng kit. Fixed with a barrel clamp to increase rigidity.
- Aftermarket magazine nut (no sling point)
- Extension tube finished in hard-wearing black Cerakote
- Barrel clamp - choose from streamlined Ultralite style or Tactical style (with removable picatinny rail).
- +5 kit also includes a longer magazine spring
- Free shipping Australia-wide
- Lifetime warranty
The Fine Print
We will need to see a photo of your firearms licence before we can ship it out. Please check your local state and territory firearms laws before purchase. We endeavor to keep these in stock but at times may have a 4 week lead time for fabrication. Questions? Email us email@example.com