Airsoft Canada - View Single Post - Pros & Cons of Upgrading the TM Thompson M1A1

Mantelope · October 21st, 2005, 01:34

I'm looking at Illusion's spring chart, and the SP120 gave him around 430FPS. The longer barrel in the M1A1 I'm guessing would make up for the rest. Why not use an SP110?

October 21st, 2005, 01:34	#4
Mantelope Scotty aka harleyb Trader rating Join Date: Mar 2004 Location: Toronto, Ontario	I'm looking at Illusion's spring chart, and the SP120 gave him around 430FPS. The longer barrel in the M1A1 I'm guessing would make up for the rest. Why not use an SP110? __________________