Cheap And Discounts Airsoft HPA (US Foster) 23-2 Male/2302 Female Quick Disconnect QD Push-In Fitting Assembly to 6MM - 6.35MM or 4mm(5/32) OD Hose Wholesale. Buy Directly From Merchant PGS OUTDOOR SPORT Speciality Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.