Designed for use on MSR/AR-style rifles
Easily removes carbon, copper & lead fouling
Safe on all types of gun metals
Biodegradable and ammonia-free formula
Fouling and build-up can cause jams and affect the accuracy of your Modern Sporting/AR-style rifle. To keep your firearm functioning in peak condition, use O12-AR MSR/AR Cleaner. This unique biodegradable formula quickly and effectively removes carbon, copper, and lead fouling. Cleans MSRs/ARs with ease and is recommended for use on bores, bolts, pistons, cylinders, and any other areas with fouling build-up. 4 oz. bottle.