Really interesting thread my friend. I am an out and out devotee of the Omega in all its guises, and know you have yourself a great rifle there. Webley did actually make a couple of prototype Omegas with gas rams, one of which (believed to be the only one left in existence) is owned by our I. J. on here, so before you ditch the knackered gas ram out of your Omega, do double check that it's not one of the original Webley prototypes. Keep us posted. Atb: GWB.