How about Rongpeng R8016 air staplers?
The Rongpeng newest 21 Gauge air stapler R8016 has Strong and light weight aluminum die-casting gun body. Multi-directional exhaust port directs air away from operator and work surface. Special hardened one piece drive blade for professional application. Teflon O-ring protect the piston from wearing. Tool free jam release mechanism designed not to lock line on sight. Tool-free depth-of-drive adjustment for exact setting of nail head. Adjustable knob for either sequential or contact firing. STANDARD EQUIPMENT: Nailer, rngged carrying case, oil,wrenches and operating manual.
The application of this rongpeng R8016 Upholstery air staplers are frequently used for several applications including felt, insulation, upholstery and fine woodwork. These tools will fire all of the brand name fasteners including, Bostitch, JK, BEA, Senco along with generic interchange fasteners.
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