Home / Accessory-Parts / Christensen Arms TACTICAL BOLT KNOB View cart “ProMag AR-15/M16 MAGWELL VICE BLOCK” 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 Wilson Combat GAS TUBE AR-15 SS 9.75″ $1395 Wilson Combat BUSHING WRENCH 1911 FS/CPCT BL $395 Sale! POF USA DICTATOR GAS BLOCK MIDLENGTH $16300 Original price was: $16300.$16234Current price is: $16234. Wilson Combat GAS TUBE AR-15 SS 11.75″ $1795