37/64" - 28 HSS Right hand Thread Tap (aka .578"-28)

37/64 x 28 .578x 28 Barrel Thread Protector Black Oxide .45 cal

POVAD 1/2"-28 HSS right Hand Thread Tap 1/2-28 TPI

1/2" - 28 UNEF Tap and Die Set

Dorman 555-104 Steel Cup Expansion Plug - 34.3mm, (Pack of 10)

POVAD 5/8"-24 HSS right Hand Thread Tap 5/8-24 Pitch

Tacticon Armament Flip Up Iron Sights for Rifle Includes Front Sight Adjustment Tool | Rapid Transition Backup Front and Rear Iron Sight BUIS Set Picatinny Rail and Weaver Rail

M13.5 x 1.0 HSS Left hand Thread Tap

KISENG 5/8-24 UNEF Right Hand Tap with Round Die

Thread Protector 1/2"x28 for .22LR, .223 & 5.56mm 9mm (2 PACK) Made in USA