Spring or air?

pballer_004 · 08-05-2005, 11:41 PM

Why does the Promaster has a spring on the back of the bolt (like a Spyder). I know the PM is not a Spyder so please dont flame me on that. Isnt the PM suppose to work like a timmy or impy?, air move the ram (bolt) not a spring.

Thanks to all who answer my question in a mature manner

chewyorphan · 08-05-2005, 11:44 PM

The PM and bushy is spring assist. It has air to move the ram back and forth. The small spring in the rear portion of the ram helps with first shot drop off.

pballer_004 · 08-05-2005, 11:52 PM

Oh ok, so the spring isnt what mainly move the ram it just helps it? Right?

Thanks a lot.

chewyorphan · 08-05-2005, 11:56 PM

Correct, it just helps with forward pressures. Kinda like if you like to sit out between games or if your gun sits at idle for a while when aired up .

GTi_Leo (Banned) · 08-06-2005, 12:01 AM

its not a blow back its got a solinoid and its air returned not spring returned liek the BKO