So I’m starting the long process of building a higher-end suppressed AR308, and the internals are likely to be JP.
One thing I can’t figure out, is what are the inherent advantages of the VMOS when compared to their full mass BCG?
I mean other than the two obvious advantages of being adjustable and being slightly heavier.
I see that that the VMOS is 0.7oz heavier when configured with two tungsten weights, so - if you need that additional 0.7oz, then the advantage is clear.
Also, if you’re going to be switching up your configuration - the benefits of the VMOS is crystal clear.
So I don’t plan to change up my configuration at all, once the rifle is tuned - I don’t plan to do anything with it other than shoot it and clean it. So the variable part doesn’t mean a lot to me. Whether or not the +0.7oz matters to me or not remains to be seen.
In my mind, the simpler the moving part system - the better. Basically - given the option, I would rather use the JP Full Mass BCG than the VMOS purely because it is a simpler system with less failure points.
That being said, I’ve never handled a VMOS so I thought there might be some other design feature I was missing - so I emailed JP asking what them if there was any reason I would want to purchase their VMOS over their Full Mass BCG if I already knew I would be shooting suppressed all the time without changing my configuration at all.
The response I received didn’t make a lot of sense to me.
I was told that the VMOS doubles the deadblow hammer effect over the Full mass BCG because part of the weight was dynamic because it moves, the effect being increased reliability, particularly when dirty.
So - as I understand it, a deadblow hammer has a hollowed area in the hammers head containing something like sand or lead shot that follows the blow of the hammer face in order to stop the hammer from bouncing like a normal hammer would.
So to me this translates into stopping bolt bounce in a BCG. This makes perfect sense to me.
***My confusion*** primarily stems from the following:
From what I’ve read and videos I’ve watched about the VMOS - I’m not seeing anything that says or suggests that the weights on the back of the VMOS move within the BCG at all. They appear to be nothing more than fixed weights that are held in place securely with o-rings to keep them tightly in place.
If these weights are not moving within the BCG itself - then they are not performing any sort of deadblow hammer effect over a solid/ fixed mass BCG of equal mass. Am I missing something? Are these weights actually dynamic and moving on the BCG?
I’m assuming that some part of this explanation simply went over my head and I’ve never handled or shot a VMOS so I’m coming here to ask those who know better than I.
Do the weights in the VMOS move?
Is there something inherent to the VMOS that would make it in some way more desirable than a fixed mass BCG other than being able to change the mass or gain a little more weight?
One thing I can’t figure out, is what are the inherent advantages of the VMOS when compared to their full mass BCG?
I mean other than the two obvious advantages of being adjustable and being slightly heavier.
I see that that the VMOS is 0.7oz heavier when configured with two tungsten weights, so - if you need that additional 0.7oz, then the advantage is clear.
Also, if you’re going to be switching up your configuration - the benefits of the VMOS is crystal clear.
So I don’t plan to change up my configuration at all, once the rifle is tuned - I don’t plan to do anything with it other than shoot it and clean it. So the variable part doesn’t mean a lot to me. Whether or not the +0.7oz matters to me or not remains to be seen.
In my mind, the simpler the moving part system - the better. Basically - given the option, I would rather use the JP Full Mass BCG than the VMOS purely because it is a simpler system with less failure points.
That being said, I’ve never handled a VMOS so I thought there might be some other design feature I was missing - so I emailed JP asking what them if there was any reason I would want to purchase their VMOS over their Full Mass BCG if I already knew I would be shooting suppressed all the time without changing my configuration at all.
The response I received didn’t make a lot of sense to me.
I was told that the VMOS doubles the deadblow hammer effect over the Full mass BCG because part of the weight was dynamic because it moves, the effect being increased reliability, particularly when dirty.
So - as I understand it, a deadblow hammer has a hollowed area in the hammers head containing something like sand or lead shot that follows the blow of the hammer face in order to stop the hammer from bouncing like a normal hammer would.
So to me this translates into stopping bolt bounce in a BCG. This makes perfect sense to me.
***My confusion*** primarily stems from the following:
From what I’ve read and videos I’ve watched about the VMOS - I’m not seeing anything that says or suggests that the weights on the back of the VMOS move within the BCG at all. They appear to be nothing more than fixed weights that are held in place securely with o-rings to keep them tightly in place.
If these weights are not moving within the BCG itself - then they are not performing any sort of deadblow hammer effect over a solid/ fixed mass BCG of equal mass. Am I missing something? Are these weights actually dynamic and moving on the BCG?
I’m assuming that some part of this explanation simply went over my head and I’ve never handled or shot a VMOS so I’m coming here to ask those who know better than I.
Do the weights in the VMOS move?
Is there something inherent to the VMOS that would make it in some way more desirable than a fixed mass BCG other than being able to change the mass or gain a little more weight?
