Breakthrough Clean Technologies Aluminum Universal Bore Guide - Rifle Cleaning Accessory - Fits Bore Sizes from .17 - .416

Piss poor design. The locking in place hole stripped out the first time I used it. Metal way to thin.

The knurled knob latch pin will not thread into sleeve when in place , it will thread into it when removed, the threads should have been fine threads due to thinness of sleeve ,

The small guide measures.073 +/- wall thickness. Not enough metal for the 1mm pitch handle to take hold. Works fine on the larger diameter of course.I made a 10-32 brass handle. Drill and tapped the smaller guide. Ouila’Suggest OEM change handle to fine pitch.Price point however, fine.

works as it is intended

A big disappointment! The main tube is too short which places the solvent port right under the scope and makes it difficult to access. The threaded collar is so thin that it is almost impossible to attach the bolt.I have returned this item for a refund.

The product looked fine but the big problem is the handle will not screw 8n the sleeve that goes over the cleaning pipe when the sleeve is on the pipe. It's useless.

Good product but the handle broke on the 3rd use.

Cheap piece of junk. Bolt handle keeps falling out because there is only one or two threads that hold it in place and they stripped on the first use. The bore guides aren’t tapped right and are hard to get threaded on without cross threading them. Definitely worth spending a little more money and getting a better quality one.