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The Range
NFA & Class III Discussion
will it fit??
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<blockquote data-quote="338Shooter" data-source="post: 936453" data-attributes="member: 3449"><p>Accuracy is probably not a factor between 7.5 and 10". 7.5s can be very finicky to get running right. The longer the barrel and gas system the smoother the gun will run typically. With a pistol length gas system you'll probably get more gas in the face. There is more pressure when the bullet passes the gas port than a longer gas system will see. </p><p></p><p>The 7.5s are fun as all get up to shoot when they run well. Also, some folks never have a problem getting them to run. The concussion and fireball from the 7.5s is definitely grin inducing, but it can get obnoxious. The 10.5s aren't much better about the concussion, but they are better. </p><p></p><p>It all just depends on what you want. I think for the few extra ounces and 3" added lenth, I'd rather have a 10.5 than a 7.5, but since it's an AR you can always have both uppers to use on your one SBR lower. <img src="/images/smilies/smile.png" class="smilie" loading="lazy" alt=":)" title="Smile :)" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="338Shooter, post: 936453, member: 3449"] Accuracy is probably not a factor between 7.5 and 10". 7.5s can be very finicky to get running right. The longer the barrel and gas system the smoother the gun will run typically. With a pistol length gas system you'll probably get more gas in the face. There is more pressure when the bullet passes the gas port than a longer gas system will see. The 7.5s are fun as all get up to shoot when they run well. Also, some folks never have a problem getting them to run. The concussion and fireball from the 7.5s is definitely grin inducing, but it can get obnoxious. The 10.5s aren't much better about the concussion, but they are better. It all just depends on what you want. I think for the few extra ounces and 3" added lenth, I'd rather have a 10.5 than a 7.5, but since it's an AR you can always have both uppers to use on your one SBR lower. :) [/QUOTE]
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