Harris Bipods Round Head Flange Nut Plastic

Ergo Castle Nut for AR-15, Black - 4971-(B)

JP Enterprises Hex Jam Nut 5/8-24, Black

JP Enterprises Enhanced Carbine Buttstock Castle Nut, Black

JK Armament 155HD Thread Mount 1/2-28, Armor Black - Secure, Reliable Mounting - JK-155-HDM28

Tacfire Buffer Tube Castle Nut for AR-15 - Black, Essential for Assembly - MAR039

EGW 2-Pack M-LOK Nut w/(2) #10-24 x 3/8" Flat Head Screws, Stainless

Ar .308 .750 Jam Nut 5/8-24'''' - Ar .308 .750 Jam Nut 5/8-24'''' Stainless Steel Silver