It's not Diecast. They labeled it as MMS212 with no Diecast logo or mention of it anywhere in the official specs.
My guess is that the design was too complex or they were on a time crunch. They may had to meet the deadline of presenting something this figure for SSDC so they stuck with plastic to make it easier on them.
Iron Man 3
Heartbreaker (Mark XVII)
1/6th scale Limited Edition Collectible Figurine
Tony Stark has built a number of new suits in Iron Man 3. Aldrich Killian and his Extremis soldiers proved to be a formidable force and Tony has to initiate the “House Party Protocol” to confront them.
We are excited to present one of the brand new armors from Tony Stark’s “House Party Protocol” – 1/6th scale Heartbreaker (Mark XVII) Limited Edition Collectible Figurine, the Artillery Level RT Suit. It features red and gold-colored armor and LED light-up functions.
Specifications
Product CodeMMS212
Product NameHeartbreaker (Mark XVII)
HeightApproximately 30 cm tall
Points of Articulations36
Special Featuresfeaturing the red and gold-colored armor and LED light-up functions
ArtistsHead Sculpted by N/A
Head Painted by N/A
Head Art Directed by N/A
The 1/6th scale Heartbreaker (Mark XVII) Limited Edition Collectible Figurine’s special features:
- Authentic likeness of Heartbreaker (Mark XVII), the Artillery Level RT Suit, in the Iron Man 3 movie
- Approximately 30 cm tall
- Over 36 points of articulations
- Special features on armor:
- Red and gold-colored painting on armor
- LED-lighted eyes and circle-shaped RT on chest (white light, battery operated)
- Three (3) pairs of interchangeable palms including:
- One (1) pair with improved articulations, movable fingers and light-up repulsors (white light, battery operated)
- One (1) pair of forceful fists
- One (1) pair of repulsor palms
- Improved articulations on waist armor which allow flexible movement
Accessory:
- One (1) circular figure stage with transparent pillar
**Prototype shown, final product may be slightly different
**Battery included for collectible figure. Button cells are required
Release date: Q1, 2014
TM & © 2013 Marvel & Subs.
© 2013 Hot Toys Limited. All Rights Reserved.