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Trev140_0 · April 8th, 2012, 19:35

Ok, I am sure this is standard issue stuff here it goes:

I have a M4.(m16) (version 2)

Was getting readings on the chrono that was all over the place. Spring is M120.

Opened her up. Seal was less than a wet fart after a good night of beers.

Changed the o ring. Ton of compression now. Dry fired it, even sounds like more bark.

Trouble is now its coughing and misfiring bb's. I am fairly sure its the bucking.

When I pull the barrel and put a bb in the bucking the bb nearly falls through. almost NO resistance.

So my assumption is I was shooting around 280 fps before and now going up to the 400 FPS range the bucking is in need of replacement.

Thought in buckings? Or am I off base?

April 8th, 2012, 19:35	#1
Trev140_0 raging hedrosexual Trader rating Join Date: Sep 2011	Bucking Suggestions Ok, I am sure this is standard issue stuff here it goes: I have a M4.(m16) (version 2) Was getting readings on the chrono that was all over the place. Spring is M120. Opened her up. Seal was less than a wet fart after a good night of beers. Changed the o ring. Ton of compression now. Dry fired it, even sounds like more bark. Trouble is now its coughing and misfiring bb's. I am fairly sure its the bucking. When I pull the barrel and put a bb in the bucking the bb nearly falls through. almost NO resistance. So my assumption is I was shooting around 280 fps before and now going up to the 400 FPS range the bucking is in need of replacement. Thought in buckings? Or am I off base? Last edited by Trev140_0; April 8th, 2012 at 20:49..