Airsoft Canada - View Single Post

Petro · September 24th, 2013, 08:17

Hi guys,

Picked up a used G&P m4. The guy claims barely over a mag was ever fired through it and he only had it for about a month. Seems like a honest enough guy and the gun looked like it was just out of the box. He says there was never anything done to the gun. Had some initial problems getting a proper chrono reading on it the first couple games I went to as it was misfeeding. Switched from bioval to G&G bb's and those feed fine, everytime now. At the last game I was at, I was getting anywhere between 309-314 fps on the chrono using .25's. That was about 4-5 shots tested. He originally got the gun from evike whose website claims it should shoot 370-410 using .20's so I'm thinking something is up. Took the inner barrel and hopup out last night, covered the holes for the hopup and tried blowing into the barrel to test for airleaks and there were none. Before I rip apart the rest of the gun to take out the gearbox and test that I was wondering if that's a normal range for a stock gun?

September 24th, 2013, 08:17	#1
Petro Trader rating Join Date: Jul 2013	Is this fps normal on a stock gun? Hi guys, Picked up a used G&P m4. The guy claims barely over a mag was ever fired through it and he only had it for about a month. Seems like a honest enough guy and the gun looked like it was just out of the box. He says there was never anything done to the gun. Had some initial problems getting a proper chrono reading on it the first couple games I went to as it was misfeeding. Switched from bioval to G&G bb's and those feed fine, everytime now. At the last game I was at, I was getting anywhere between 309-314 fps on the chrono using .25's. That was about 4-5 shots tested. He originally got the gun from evike whose website claims it should shoot 370-410 using .20's so I'm thinking something is up. Took the inner barrel and hopup out last night, covered the holes for the hopup and tried blowing into the barrel to test for airleaks and there were none. Before I rip apart the rest of the gun to take out the gearbox and test that I was wondering if that's a normal range for a stock gun?