Home / Accessory-Parts / Christensen Arms TACTICAL BOLT KNOB View cart “Christensen Arms THREAD PROTECTOR 5/8-24 BRNZ” has been added to your cart. Christensen Arms TACTICAL BOLT KNOB$5499 Out of stock SKU: 810-00019-00 Category: Accessory-Parts Product ID: 32932 Description Description Large Tactical Bolt Knob Related products Sale! POF USA DICTATOR GAS BLOCK CARBINE $16300 Original price was: $16300.$16234Current price is: $16234. ProMag PROMAG VERTICAL FORE GRIP BLK $1699 Wilson Combat GAS TUBE PISTOL LENGTH 6.6″ $1350 POF USA TOMAHAWK CHARGING HANDLE 308 $10400