Airsoft Canada - View Single Post - Bearing spring guides and piston heads

The Saint · January 4th, 2008, 17:20

Yes, fps increase after installing bearing spring guide and/or piston head is due to them acting as spacers. The opposite can be observed when removing TM piston heads, as they have a large lug inside the piston.

Yes, your assumption is wrong, spring does try to rotate while being compressed. Yes, you really only need bearing on the guide or piston head for the purpose of spring rotation. I personally use both to increase fps when the next level of spring up is overkill. Most aftermarket piston head includes them anyways.

Rarely, (very rarely) having both in addition to certain (overly-lengthy) springs can actually result in the piston not having enough room to draw back.

January 4th, 2008, 17:20	#3
The Saint Trader rating Join Date: Jan 2005 Location: Quebec	Yes, fps increase after installing bearing spring guide and/or piston head is due to them acting as spacers. The opposite can be observed when removing TM piston heads, as they have a large lug inside the piston. Yes, your assumption is wrong, spring does try to rotate while being compressed. Yes, you really only need bearing on the guide or piston head for the purpose of spring rotation. I personally use both to increase fps when the next level of spring up is overkill. Most aftermarket piston head includes them anyways. Rarely, (very rarely) having both in addition to certain (overly-lengthy) springs can actually result in the piston not having enough room to draw back. __________________ "The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."