S&W ported the MP-10 to be properly gassed with commercial pressure ammo. With the Omega in place, it's likely over gassed. However, the rifle in question is also exhibiting extraction problems. Change the extractor spring
S&W ported the MP-10 to be properly gassed with commercial pressure ammo. With the Omega in place, it's likely over gassed. However, the rifle in question is also exhibiting extraction problems. Change the extractor spring
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