Quote History Quoted:
Were talking pistol length gas tubes not carbine. There are no suppressors rated for under 10.3" barrels. But there is merit to go with a 10.3" barrel over something less. It still helps to have a linear compensator if you happen to touch one off with out hearing protection. The moderators put on XM177s were designed to bring the decibel level closer to a rifle pressures. They could have went with longer barrels but they didn't.
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Quote History Quoted:Quoted:Then add a suppressor. All of my SBR's work fine without extra long muzzle devices.
Were talking pistol length gas tubes not carbine. There are no suppressors rated for under 10.3" barrels. But there is merit to go with a 10.3" barrel over something less. It still helps to have a linear compensator if you happen to touch one off with out hearing protection. The moderators put on XM177s were designed to bring the decibel level closer to a rifle pressures. They could have went with longer barrels but they didn't.
I have two pistol gas uppers, a 10" carbine gas and 12.5" midlength gas. None of them need a linear compensator. None of them are hearing safe even with a suppressor. I run my 10" with a suppressor all the time, when it wears out, it wears out.
5.56 is a poor performer from a 7.5" barrel anyways. That short and you will get better performance from another caliber. In the case of the XM177 IMO they would have been better served with a true suppressor design, as it is the original moderators are still regulated.