Harrington & Richardson SMG 635, Breek Arms Warhammer mod 2 charging handle, Ballistic Advantage 8" barrel, Troy fixed front sight, KAK muzzle device, Midwest Industries Suppressors Series handguard (suppressor will fit inside handguard), integrated carry handle, PSA Gen 4 9mm nitride bolt carrier group, two 32-round Colt mags.  There's a lot to like with this pistol!