KleenBore 556-SET MSR/AR Cleaning Kit with #8-32 Thread Cotton Mop and Bronze Bristle Bore Brush

Keeping your AR or other modern sporting rifle clean is non-negotiable if you want reliable performance in the field or at the range. The Kleen-Bore 556-SET AR cleaning kit gives you the core tools needed to maintain your MSR platform rifle without breaking the bank or cluttering your range bag with a dozen different pieces. This focused kit pairs a bronze bristle bore brush with a cotton mop—both threaded to the standard #8-32 specification that fits virtually any modern rod system—so you can get a rifle properly swabbed after a range day or before extended storage.

Whether you're running an AR-15, AR-10, or another MSR variant, fouling and powder residue accumulate inside the bore and affect accuracy if left unchecked. The bronze bristles are tough enough to scrub away copper and carbon buildup without over-aggressive scoring, while the cotton mop serves double duty: it can push solvent through for a preliminary flush or handle final drying once you've run the brush. Both components attach directly to any standard cleaning rod with #8-32 threads, so you're not locked into a proprietary system.

Kleen-Bore has been making firearms cleaning products for generations, and this kit reflects that straightforward, no-frills approach: you get what you need, nothing you don't, and it works. Ideal for hunters, competition shooters, or anyone who takes maintenance seriously and prefers to spend time shooting rather than shopping for accessories.

Key Features

• Bronze bristle bore brush designed to remove fouling and buildup without damaging the barrel
• Cotton mop for solvent application and bore drying
• #8-32 thread compatibility with standard AR cleaning rods and systems
• Lightweight, portable kit suitable for range days or field maintenance
• Focused, practical design for MSR and AR-platform rifles

Specifications

Frequently Asked Questions

Will this cleaning kit work with my AR-15?

Yes. The #8-32 thread standard is universal across modern AR cleaning rod systems. As long as your rod accepts standard threaded attachments, both the brush and mop will install without issue.

What caliber rifle can I use this kit on?

This is a 5.56 NATO/.223 Remington rifle cleaning set, so it's sized and designed for AR-15 and other MSR rifles chambered in those cartridges. The bore brush and mop dimensions are matched to that bore diameter.

What's included in the 556-SET?

The kit includes a bronze bristle bore brush and a cotton mop, both with #8-32 threads. You'll need your own cleaning rod and solvent to complete a full maintenance cycle.

Do I need a special cleaning rod to use these?

No. Any standard AR cleaning rod that accepts #8-32 threaded attachments will work with both the brush and mop in this kit. They're not proprietary to Kleen-Bore.