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FOR CROSMAN 1377 1322 P1377 P1322 2289 DRIFTER 362

This kit consists of my Normal or Flat Top Valve, Adjustable Piston, Power Spring and Max Flow Bushing.

You have your choice of a Pump Cup Piston or a Flat Top Piston.

Brass is available in Flat Top Style. Aluminum is available for both Flat Top and Pump Cup Style.

Only aluminum valves are available right now.



Aluminum Piston, Flat Top, 362

Brass Piston, Flat Top, 1377 1322 Drifter

Aluminum Piston, Pump Cup, 1377 1322 Drifter

These photos have set screws, which I have since decided against. The jam nut works well and is cleaner.

Short & Long Brass Flat Top Pistons against Aluminum Flat Top Valves


Adjustable Piston Pack