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Pin Sets

Government size 1911 front sight adapter

This adapter is necessary to properly align the front sight on 5" 1911's. Not necessary on shorter 1911's. it installs in place of the rotating flange nut. THIS ADAPTER IS ONLY USED WITH THE MK V TOOL. The Mk lll does not need it.

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Glock Specific Jackscrew Set

A new jackscrew adapter  which features a 60* angled surface and a 90* square surface. It is sized to fit the Glock dovetail dimension. This adapter will work with both angled sights and replacement sights with a square edge. The jackscrew and pins are similar to the front sight set. It is provided with a jackscrew and two different length pins.


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3/16" square adapter set

This set is designed to fit S&W front sights, as well as others that are too small to use the regular square adapters. The set contains a dedicated jackscrew, square adapter and two different length pins.The 1-1/4" pin has been deleted due to a propensity for breakage and possibly being a safety hazard. This adapter will work with any of the JMT products that utilize a 3/8-16 jackscrew.

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Lock Plugs

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Jackscrew Sets

Spare Jackscrew Set

Ordered with Pusher

Select when ordering with a pusher

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Spare Jackscrew set ordered separately

Select if ordering spare jackscrew set without s pusher.

International Shipping

Shipping to most of Europe and Australia is $38. Select this option which is the difference in regular shipping and international shipping.

© 2017 Jennings Machine and Tool

Pleasant Grove, AL 35127

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