Is the repeatable POI shift only possible with a QD setup or could it also be repeatable with the ASR mount or something like the Dead air armament KEY-MO ADAPTER. Not sure if the same alignment is necessary every time with the suppressor to achieve this.
Im confused by your referring to the QD and ASR as separate things.
The direct thread module screws into the back of the can and then that goes directly onto the barrel as Im sure you had imagined
Can>Direct thread module>Barrel
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Here you can see the direct module mounted on a barrel without the can
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The ASR module screws into the back of the can in exactly the same way as the direct thread attaches to it only instead of then screwing directly onto the barrel you thread it onto an ASR brake/flash hider.
Can>ASR module>Brake>Barrel
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Here you can see it assemebeld on the can
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Then it slides over the muzzle brake, You can see the threads at the base of the brake that the ASR module threads onto
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Here it is mounted but without the can on it
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The omega is great, its a top notch adaptable can for anything 30 cal and below. It was my first can and I havent found the need to buy another yet even though there have been some great deals posted since after the 41F surge.
Both systems should allow you to have a repeatable shift and shouldnt require any markings to make sure you clock it the same way each time. When its tight its tight and thats as far as you should go. Just dont put a hot can on a cold barrel as the cold barrel will then expand and make removing it a bitch. That goes for any threads though.
The deadair system should be just as repeatable as the ASR but it didnt make financial sense for me to go with it since I dont have anything with a hardguard longer than the barrel threads so a ratchet system wouldnt get me anything tangible.