Haven’t been around to reply ,but thanks guys for the info , I’m out of state right now to look at the actual barrel but I purchased this upper kit from Davidson Defense
Their .300 blackout Whisper is what I purchased if any of you want to check it out on the website.... I have since emailed...
Just purchased a .300 blackout whisper and I’m not sure about ammo can I shoot the 300 blackout or does it have to be whisper ammo
This was kind of a impulse buy , thought it was all the same as the 300 blackout as I’m trying to build a rifle for my son to hog hunt
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