| Name: | Black Diamond Airlock2 Twistlock |
| Category: | twist lock |
| Locking Type: | full-auto |
| Locks: | single |
| Unlock Style: | twist |
| Sleeve Rotation: | 90° (unlocked) | 90° (maximum) |
| Shape: | HMS |
| Material: | aluminum |
| Profile: | hourglass |
| Nose: | notch & pin |
| Nose Guard: | none |
| Rivets: | domed + flat spun |
| Gate Shield: | none |
| Weight: | 80 g |
| Dimensions: | Length: 113 mm Width: 74 mm Gate Opening: 21 mm |
| Strength Ratings: |  23 kN |  7 kN |  7 kN |
| Other Markings: | Forged: (double diamond logo)BlackDiamond USA | (ratings) CE0639Ⓗ Stamped: 5087 |
| Batch Marking Location: | spine-exterior-left |
| Msrp: | $15.95 (2003) |
| Summary: | basic twistlock from the dawn of the modern era of autolocks |
| Description & Commentary: | A nicely shaped double action (single lock) carabiner. Sleeve is not heavily textured, which will help prevent an accidental clip (unlike the Petzl Triact. The gate sleeve is very thin, and I doubt it would withstand much gate-face pressure. |