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Frankenstein Defense - Direct-Impingement VS. Gas Piston Which do you prefer in your rifle? frankensteindefense.com 1-888-232-9577 #pewpew #guns #ar15 #recoil #frankensteindefense | Facebook
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Top 20 Next-Gen Piston-Driven ARs
Top 20 Next-Gen Piston-Driven ARs
