Gash

I have got to the bottom of what’s occurring and thought I would share so anyone having the same issue might have a chance of setting it right. So the hop assembly is perfect. Absolutely nothing wrong with it. The bucking itself is in perfect condition with zero wear and everything else is exactly how it should be. the anomaly I found was on the nozzle guide. I noticed some abnormal wear along the edge where the hop dial goes over when the BCG is in its forward position. It looks like the nozzle guide plastic is ever so slightly warped towards the front end. There is a slight increment/curve upwards in the plastic which from what I can gather is causing it to catch on the hop dial (there was a slight knick out the dial in the spot I would have my hop set and wear/burs along the edge of the guide). As the dial is click forward to turn off it stands to reason that with every shot fired, as the carrier is returning to its forward position it is catching on the dial and turning it off with a few clicks every shot you take. This all rings true to the symptoms so I believe I have my culprit. the nozzle guide is very malleable so I have bent it a little, flattening out the curve and I have also shaved a mm of the plastic away along the edge in question incase it rides back up again. Inevitably I will order the AG Nozzle Guide as it’s made of a harder plastic and less likely for this to happen again but in the mean time the temp fix seems to be working as intended. I hope this information helps people experiencing the same issue now or in the future. From looking around it doesn’t appear to be a common issue so it’s nice to have an actual cause and solution.

Of that I’m sure😊 Well, thank you for settling a curious brain chaps and for all the info. I will get busy and report back with findings.

The rubber definitely isn’t rated for the weight rounds I’m using. An oversight on my part. In your experience would a split or damaged bucking cause the current symptoms, inconsistent FPS and the hop winding itself fully off under fire?

I will get a closer look when I strip it. Not sure how the nub would have fallen out as it hasn’t been apart since built and oddly the bucking seems to look ok and when the hop wheel is wound on you can clearly see the bucking nub lowering. thanks for the responses though dude. I will no doubt get a clearer picture when it’s apart.

Maple Leaf Crazy Jet barrel. Firefly Medium bucking (I know this really needs swapping out for a harder one whilst running heavier rounds). SixG brass nub. G&P high flow nozzle valve. dynamic precision piston seal. SixG buffer dampener. Like I say, it was flawless for a whole day then when got back out today it was failing. Could it be as simple as the rubber being to soft and has been battered by the power and round weight or is it something more sinister.

Hi all. Thought this would be the best place to ask. I recently upgraded a TM MTR and it ran like a dream for a game. Pin point accurate, excellent range and power. It went away after the game and I broke it out for some further testing today. What I found was major hop issues. After a few shots it was like the hop was winding off completely. Turn it back on and set it, a few shots later it’s wound off again, nose diving rounds. I will be stripping it down to see if anything is a miss but before I do I thought I would ask here to see if this was a problem someone else had faced that may be able to relieve the upcoming process. thanks in advance.

I wondered this but the images and description only really mention the one particular Nineball microdot. There is a removable plate for mounting a red dot. It arrives tomorrow, I will have a closer look then. Appreciate the help though folks.

I have been unable to find one. Been looking for a while now. There seems to be ones available for Glock but non specifically for the M&P9 L. If you end up making one for the M&P9 L/Trijicon RMR specifically I will happily take one off your hands🤙🏻

Thank you for the info dude. I will hunt out a mounting plate in that case🤙🏻

Howdy hive mind. I am about to purchase a TM M&P9 L and I have a curiosity about the red dot mounting point. I know there is a removable plate and that TM make a red dot that is a direct mount in to the gap but my question is, can any other red dot (In particular the Trijicon RMR) mount straight in to the gap or is a mounting plate needed? Any information and help appreciated. Cheers y’all.