Here is Sentinel Prime with his cosmic rust gun he uses to kill Ironhide with in the movie.
Sealed Transformers® Movie - Dark of the Moon (DOTM) Cyberverse
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4th party BW BAIWEI TW1024 DOTM Dark of the Moon Sentinel Prime
Delivery 6-7 days , West Malaysia RM11469, East Malaysia RM11475, (Pos Laju/GDEX/Skynet), Contact 0162472537, CIMB / Maybank, “For Cybertron! For our
Prime 1 Studio Transformers: Dark of the Moon (Film) Sentinel Prime EX Bonus Version MMTFM-23EXS Limited Edition:250
MMTFM-23EX Sentinel Prime (Transformers: Dark of the Moon Film
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Transformers Studio Series 61 Voyager Class Sentinel Prime Action
Transformers Toys Studio Series 61 Voyager Class Dark
Prime 1 Studio - Transformers: Dark Of The Moon - Sentinel Prime