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ILLusion · March 11th, 2008, 03:14

The spring doesn't need to be as high as an M130.

Minimum is a Systema M120 or equivalent, so a Prometheus MS120SP is sufficient. That is information that I have acquired directly from Systema.

I've effectively run a bore up set in an Armalite with 6.03mm tightbore 590mm length inner barrel and Systema M120S spring. That setup was shooting ~425fps.

March 11th, 2008, 03:14	#2
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	The spring doesn't need to be as high as an M130. Minimum is a Systema M120 or equivalent, so a Prometheus MS120SP is sufficient. That is information that I have acquired directly from Systema. I've effectively run a bore up set in an Armalite with 6.03mm tightbore 590mm length inner barrel and Systema M120S spring. That setup was shooting ~425fps. __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed Last edited by ILLusion; March 11th, 2008 at 03:17..