|This article is about a/an weapon in Kamen Rider Drive.|
The E-Circular (E-サーキュラー Ī-Sākyurā) is a weapon used by Mashin Chaser whenever he assumes one of his Tune Chaser (武装チェイサー Busō Cheisā, lit. "Armed Chaser") forms using the Chaser Viral Cores, which materializes from the Circular Dynamics (サーキュラーダイナミクス Sākyurā Dainamikusu) on his back and equips him with one of three weapons depending on the core used. Accessed through the Break Gunner, Mashin Chaser can initiate a Full Break (フルブレイク Furu Bureiku) finishing blow with any of his weapons by pressing the Destruction Muzzle and then pulling the Demolition Trigger.
- Fang Spidey (ファングスパイディー Fangu Supaidī): Tune Chaser Spider's pincer-like weapon via the Chaser Spider Viral Core. It first appears in episode 5. This weapon's Full Break is called Execution Spider (エグゼキューションスパイダー Eguzekyūshon Supaidā), where the E-Circular imparts energy into the Fang Spidey before Mashin Chaser slashes a hologram version of his weapon at the enemy.
- Tail Whipper (テイルウィッパー Teiru Wippā): Tune Chaser Cobra's whip-like weapon via the Chaser Cobra Viral Core. It first appears in episode 7. This weapon's Full Break is called Execution Cobra (エグゼキューションコブラ Eguzekyūshon Kobura), where the Tail Whipper physically detaches from Mashin Chaser's arm so that it can attack the enemy.
- Wing Sniper (ウィングスナイパー Wingu Sunaipā): Tune Chaser Bat's bow and arrow-like weapon via the Chaser Bat Viral Core. It first appears in episode 7. This weapon's Full Break is called Execution Bat (エグゼキューションバット Eguzekyūshon Batto), where Mashin Chaser jumps up into the air and performs a double leg kick with purple energy bat wings surrounded on his feet. This is the only finisher performed through Mashin Chaser's body instead of with his weapon itself.
- Dead Liberation (デッドリベレーション Deddo Riberēsyon): Hybrid form of the three weapons via Triple Tune after being upgraded by Medic. It first appears in episode 21. This weapon's Rider Shooting-like Full Break is a long purple beam with energy projections of the individual modes of the E-Circular.
- ↑ 超全集 2015, pp. 42-43