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Gun Barrel Borescopes

(19 products)
For gun barrel inspection, a borescope needs to have good lighting and very short focus distance (less than 3mm) due to very limited space. Also the diameter of gun barrel scopes have be small (less than 4.5mm) to fit into 17 caliber rifle. Normally, the insertion tube is either totally rigid or semi-rigid, side-viewing mirror or lens is highly desired to exam barrel walls in details. 

We have two types of gun barrel borescopes: traditional optical fiber type, and miniature video camera type. For video camera type, our USB scopes have manual focus feature, and can connect to PC, Android phones and iPhone iPad to preview and take pictures and videos. The most popular models are Vividia GB-460 (4mm diameter, 24" long probe), GB-430 (4mm diameter, 12" long) and GB-8556 (8.5mm diameter, 22" long semi-rigid), GB-5100 (5mm diameter, semi-rigid, 36" long), GB-526 (5mm diameter, rigid, 26" long)

Available diameters of gun barrel borescopes are: 2.8mm, 4mm, 8.5mm. Side mirror usually has slight large diameter. Our gun borescopes are used by gunsmiths, firearm manufacturers, armorers, barrel builders, precision rifle shooters, and gun enthusiasts. The scope is also called rifle borescope, gunsmith borescope, firearm borescope, precision shooting borescope, handgun borescope, pistol borescope and rifle barrel borescope.   
Some pictures taken by GB-430 and GB-460 of Brownells AR-15 Barrel: Gas port hole front and side-view modes  

​Comparison Table of several gun borescope models with Lyman Borecam
Models
Vividia
GB-460
Vivida 
​GB-430
Vividia
GB-5100
Vividia
​GB-8556
Vividia
​GB-526
Insertion tube
rigid straight
rigid straight
semi-rigid
Semi-rigid
rigid straight
Probe diameter
​4mm (0.157")
​4mm (0.157")
5mm (0.197")
8.5mm (0.335")
​4.9mm (0.193")
Probe length
24" (61cm)
12" (30cm)
40" (100cm)
22" (56cm)
26" (67cm)
View directions
​forward and side
0 and 90
​forward and side
0 and 90
​forward and side
0 and 90
​forward and side
0 and 90
​forward and side view
Focusable?
​Manual focus
​Manual focus
​Fixed focus
Manual focus
Fixed focus range
Resolution
​1280x720
​1280x720
​1280x720
640x480
​1280x720
Connection
​USB to PC, Mac, Android
​USB to PC, Mac, Android
USB to PC, Mac, Android
USB to PC, Mac, Android
USB
Monitor included
​No, optional monitor
​No, monitor optional
​No, monitor optional
​No, optional 4.5" monitor
No, 4.5" LCD optional
Caliber to fit
​.17 Caliber
​.17 Caliber
​.20 Caliber
​.35 Caliber
​.20 Caliber
For iPhone/iPad?
​yes. need wifi box and app
​​yes. need wifi box and app
​​yes. need wifi box and app
​​yes. need wifi box and app
yes. need a wifi box
For PCs Android?
yes
yes
yes
yes
yes
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