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  • BT Designs BT4 Delta Upgrade Kit

BT4 Delta Upgrade Kit

Article number: 011720
Excl. tax

In stock

Available in store


Upgrade your Game! Take your BT-4 and give it an authentic military look with the Delta Elite Upgrade Kit. The Delta Elite Upgrade kit will take your marker from a stock BT-4 and transform it into a complete BT Delta Elite marker, with its authentic submachine gun styling and the unique Apex barrel. Add the Rip Clip and E-Grip and you’ll complete the Delta Elite package. The Kit contains barrel with shroud, stock, magazine, top shroud and new clamp elbow. Begin with a standard BT-4 or any of its variants and modify it into the submachine gun used by Special Forces around the world. 

Features Include:

  • Fits any BT-4 model marker

  • Authentic SMG styling

Kit Includes:

  • BT Apex Barrel with shroud

  • Hit previously untouchable targets with new curve features.

  • Adjustable ramp switch – choose the desired level of the curve.

  • Left hook, right hook, dive bomb shots and long flat trajectory shots with a twist of the barrel.

  • Collapsible stock

  • Magazine, Picatinny mounted

  • Picatinny mount Clamp Elbow with shroud