How to install the red bore sight kit ?
- Assemble the battery into the bore sight.
- Select the appropriate adapter and tighten the screw to expand the adapter to fit your gun barrel tightly.
- Insert the boresighter with adapter into your equipment.
- Make the adapter edge form a contact point with the barrel and the bore sighter is stable.
- When you press the switch button, a bunch of red beam will be emitted.
Battery Installation
- Insert 3 LR44 batteries into the battery slot.
- Tilt the battery slot at an angle, insert one end at an angle, and then push up to fully insert the battery slot.
- Rotate the battery compartment to make it doesn't come loose.

Laser Boresighter Kit Package Includes: 
1 x Laser bore-sighter
1 x Screwdriver
1 x Allen Wrench
1 x Spare Screws
6 x AG13 Battery
16 x Bore adapters
Product information-Technical Details
| Item Package Dimensions L x W x H | 7.44 x 3.19 x 0.67 inches | 
| Package Weight | 0.29 Kilograms | 
| Item Weight | 1.33 Ounces | 
| Brand Name | EZshoot | 
| Color | Red | 
| Material | Aluminum | 
| Manufacturer | EZshoot | 
| Style | BoreSighter | 
| Sport Type | Hunting | 
| Mounting Type | Picatinny Mount | 
| Night vision | No |