DMM Phantom Wiregate Carabiner:

If you haven't discovered the Phantom yet you are seriously missing out. DMM have used new alloys combined with their trademark I-Beam technology to bring the weight down to a ridiculous 26g, whilst still managing to keep the biner full-strength and unlike some its close competitors, large enough to handle with gloves. 10/10
DMM Phantom Wiregate Specifications:
Closed 23kN
Open 9kN
Cross-loaded 8kN
Weight 26g.

DMM Phantom from DMM Climbing on Vimeo.