Want to own the SOTAR AR15 BCG 3 Bore & Gas System Gauge Set?

SOTAR BCG 3 Bore & Gas System Gauge Set

We have closed orders until further notice.

https://schooloftheamericanrifle.com/...

The Gauge Set includes:

14 Bolt Carrier “3 Bore” Pin Gauges (Color Coded)

2 Carrier Key/Upper Receiver Alignment Gauges

1 GO/NO-GO Carrier Key/Gas Block Gauge with Handle (Handle is NOT Engraved/Stamped)

1 Carrier Key Gas Path Gauge

1 MTM Container (For Gauges)

U.S. ONLY/No Export

If this item shows "Sold Out" we do allow Back Orders for this item. Back Orders can take up to 8-12 weeks to ship. If you are not willing to wait, please Do NOT place an order. Orders cancelled within the backorder window will result in a 20% Restocking/Cancellation Fee.

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If you’re interested in purchasing an Organizer Tray to hold all the Gauges we use, SuppressorTools.com sells them:

https://www.suppressortools.com/produ...

The SOTAR BCG 3 Bore & Gas System Gauge Set fills slots A through 0, X, Y, & U on the Organizer Tray.

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IMPORTANT NOTES:

*We are NOT selling the Firing Pin Hole Gauges (Q in the Organizer Tray), Cam Pin Hole Gauges (P in the Organizer Tray), and Bolt Face Gauges (R in the Organizer Tray) at this time. We have open pre-orders for them that we. still have to complete. Those Gauges will only be available to Alumni unless I can find a manufacturer that can make them to our standards. I have tried about a dozen companies so far and none of been able to make them accurate enough for our standards.

*The Extractor Clearance Gauge (V in the Organizer Tray) can be purchased from Pacific Tool & Gauge

*The Bolt Tail Ring Gauges (S&T in the Organizer Tray) can be purchased from Vermont Gauge.

*To do a thorough Bolt Carrier Group check you will need to acquire all the above, plus the following:

1) Bore Scope

2) Inch # Torque Wrench (One that can check breakaway/reverse torque, such as the Wheeler FAT Wrench)

3) Air Compressor

4) Headspace Gauges (.223 GO, 5.56 GO, & 5.56 FIELD)

5) 1″ Micrometer

6) Ejector Gauge

7) 8″ Caliper

8) Firing Pin Protrusion Gauge/Depth Gauge

9) Host/Test Barrel

10) Host/Test Upper Receiver