In order to address concerns regarding restricted barrel lengths, the pin of the barrel extension is flipped 180 degrees. This is simply so you cannot easily swap back and forth with a short 10" AR barrel. The downside to this for the guy intent on modifying the rifle is those barrel extensions are proprietary. One would need to modify (machine) the upper, which from the manufacturer standpoint is something we can point to and say it didn't leave here that way.
I can't recall anyone saying that future parts would be leveraged against you or anything, but we also need to discourage some aspects of caliber conversions from a safety perspective. (Think subsonic 300blk in an 18.6" barrel... Boom. ) Warranty however, would be voided by modifying the rifle, and you could be charged shop rates for any repairs afterwards. That's just industry standard.
I assure you that some caliber conversations are being researched (6.5). As long as the test results are positive, they will be available direct from manufacturer. Priority is on delivering the rifles that have been ordered however.
Currently there are limited numbers of parts available for uppers, in the future, who knows what's possible.
Cheers
Shaun
I've tried to resist commenting in this thread because I haven't been overly impressed with the performance of the three MH's I've shot so far, I haven't handled or fired a MV, and didn't want to be the guy that points out the negatives again but your comments about 300BLK make me think you either know nothing about the round or you're just trying to scare us into paying your ridiculous prices to have any work done.
Don't get me wrong, I've seen some beautiful custom rifles come out of your shop and the prices are competitive on those but these are glorified AR's with a few minor changes in the CNC program for the upper and lower then a couple little mods on some parts you bought from other manufacturers to make them work with your stuff. You didn't invent and manufacture a completely new rifle here with all parts made in house yet the price is nearly double what a quality AR would cost. I would actually be fine with the price if they were as reliable as an AR and the market set the price but the MH's I've shot have all had feeding issues and the gen 2 pmag only thing is pretty annoying, I was glad to hear the floppy floating charge handle issue was addressed but I have yet to try one of the newer rifles.
I like the way the rear takedown pin was eliminated and the machining/fit/finish is great but reliability of the MH left me thinking that more time should have been spent refining the product before releasing it to the public. I think the number of them that continually flow through the EE shows that people that actually shoot them have similar feelings.
Your comment about subsonic 300BLK in an 18.6 inch barrel doesn't make any sense at all. I shoot sub sonic 300BLK from my 18.6 inch NR ACR all the time, I have loads that cycle the action perfectly. I had a barrel custom made, modified the gas system myself and it is 100% reliable with subsonic and supersonic loads, there is no risk of boom, some factory loads won't cycle the action but the bullet always leaves the muzzle somewhere just over 1000fps.
I understand that ATRS doesn't want anyone doing something stupid and putting a restricted length barrel in the rifle thus drawing RCMP attention to it and risking them revisiting their decision on the classification but what people do to their property after the sale is their business and not the manufacturers, of course major modifications should void the warranty but if making a tiny notch in the receiver for the index pin of a 300BLK barrel voids the rifles waranty then I have even less interest in this rifle than I did before. I'm certainly not willing to pay a shop $1000 to do something I can do myself for half that.
Until there are more of these in people's hands and we hear how reliable they are I'll continue to sit on the side watching but if 6MT's experience with 77gr is an indication it sounds like a repeat of what I've seen from the MH. They shouldn't be this finicky with ammo or magazines. They should feed anything other than softpoint ammo as long as it fits in the magazine, of course the barrel will have certain ammo it likes better than others and only produce excellent accuracy from premium ammo but they should cycle it all.
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