The Positron Screwgate Carabiner by Black Diamond is a keylock carabiner with a solid gate; smaller than the Dynatron. All-around, snag-free value.
 
FEATURES 
 
A deep basket reduces fumbly clips
Keylock nose prevents snagging
Easy-to-hold functional shape
Screwgate sleeve
 
PRODUCT SPECIFICATIONS
 
Best Use: Climbing
Weight: 2 oz
Carabiner Type: Locking Carabiner
Gate Style: Screw-lock
Major Axis Strength Closed: 25 kN
Major Axis Strength Open: 8 kN
Minor Axis Strength: 8 kN
Open Gate Clearance: 21 mm