DYE’s Slide Lock Airport (SLAP) ASA is all-new for the M3+ and is also compatible with the DM14, DM15, M2 and M3s markers. The new enclosed SLAP design provides long term dependability in a rugged and easy-to-operate package. The shielded design has no button to operate, no knob to turn and no lever to get snagged. All critical operations are protected by the Slide Lock Cover. Simply press and slide the lock cover back to engage the air supply with ease.