These AR10/AR308 chamber mops from Breakthrough are crafted from 100% cotton. Each cleaning swab is stamped with the appropriate caliber. Soft and washable they are very effective at removing residue and getting your chamber clean. At home, on the range or in the field, keeping your firearm clean is not optional, it's critical! Make sure you have Breakthrough Clean Technologies in your range bag, hunting pack or duty gear!

Specifications and Features:
Breakthrough Clean Technologies BT-308CM-AR
AR 10 and AR 308 Chamber Mop
7.62mm and .308 Calibers
100% Cotton