Sirex
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Joe Biden recommended just getting a double barrel shotgun, so you can fire two blasts into the air, to scare the bad guys away. No one has ever robbed Joe Biden. Coincidence? Think not.
My HD gun is a home-built SBR. Engage upper and lower. 10.5” Noveske barrel (5.56). Trigger is a Geissele B-GRF (with the 3.5# spring). Fenix light with pressure switch - 1200 lumen. Aimpoint PRO, 762-SDN-6 suppressor. Ammo is home loaded with Nosler Ballistic Tip 5.56 ammo. 40 round P-MAGS X2.
It is everything people say should not be used in a HD gun. I have shot the gun extensively. I know it well. Everything is well thought out. Plenty of fire power to stop a threat. Overkill? Home defense should not be fair. Threaten my family and I am coming at you with overwhelming firepower.