“Bore-Check” Gauges ensure that your gun bore complies within SAMMI specs. These Kits are sold in a Five-Gauge Set which includes ONE vial of lapping paste. The Gauges Screw into Your Own Standard Cleaning Rod. # 8-32 NC Thread is the Standard for most Cleaning Rods, except the .177, which is #5-40 NC Threads.

There are THREE Styles of Kits.

Each Style has a unique structure for max strength, determined by the SIZE of each caliber.

Our gauges DO NOT FIT into Military cleaning rods, as they have unique threads.

1. Click on the proper category.

2. Select your Caliber and Quantity.

3. Then add them to your cart!