The bleed off hole should be in line with the smallest hole but in the middle of the first round section before it tapers down to the gas holes. barrel is of course 14.5' P&W and a mid-length which would be outside of the end of the handguard might have been a better choice. I'm pretty confident I have a Carbine length gas system as it's just before the end of the 10' handguard right about the 9.75' or so location for most Carbine length gas systems.

428 that you along with 1 or 2 other have said helps with the gun being so overgassed. I've heard of the smaller piston that allows more bleed off in all settings and that POF has moved to a. How exactly do I tell which piston that I have in my gun? I can PM you a picture if that helps better. Just pulled the gas plug out and facing the N side up with the button on the right side with it out of the gun the bleed off hole appears to be the exact same size as the fully open gas setting drilled exactly in the middle of the first smooth round section of the gas plug (before the little shoulder dips down to the section the main 4 gas holes are. 430 Piston) and thus also help with the gun being Overgassed in all settings, does anyone have experience with this?Īny other suggestions to solve this all around Overgassed issue on the 308 platform? I heard that POF has a smaller piston or a piston that will allow more bleed off (a. 5mm hole drilled in the off posotion of the gas plug made another POF Revolution run much better suppressed and solved the overgassed issue. Springco AR0308 Extra Power Carbine buffer spring that's specifically designed for overgassed 308 caliber guns. Solutions I've heard of the following and I'm asking if anyone has any experience or confirmation with the following? I'm stuck with the gun and I've at least made some progress getting it to run unsuppressed mostly reliably albiet Overgassed with everything from 147 to 178gr 308 ammo.

It runs with all the ammo in the video but ejection is pretty far forward without the suppressor in the normal setting, add the suppressor and put the gun in that suppressed setting just amplifies the issue to the extent of constant failures.

POF replaced the barrel and bolt under warranty and added a bleed off port to the gas plugs suppressed setting with my YHM Resonator R2 and said it was running good. Finally figured out what ammo this gun likes to run with, this is after my first RMA with POF due to the headspace being out of spec from bad heat treating.

Running with rifles ogre exception