Bosch PR20EVSK User Manual download pdf (Page 4)

www.ModulusArms.com

October 20, 2014

www.ModulusArms.com | AR-308 Jig Instructions

Figure 2: Template Features

To speed up the milling process, excess material is removed with a drill. The drill holes are located with a

drill guide installed under the template as shown in figure 3. Since the template only exposes a limited

number of holes in the drill template, there is no chance to drill a hole in the wrong location.

CAUTION: The drill guide is user friendly, one of the screw holes will not line up if the orientation is

incorrect. Furthermore, the drill guide cannot be installed upside down. For best results, start the drill

with the bit inside of the drill template to reduce the risk of accidental jig template damage.

Figure 3: Drill Guild installed under template in both orientations

The same side plate is used on the left and right side as shown in figure 4. The rear takedown hole is

provided to assure proper placement for the drilling of the safety selector and the trigger group pins.

The side plate support holes are designed to reduce flex and marring with anodized lowers when the

side plates are placed in a vise to secure the lower during the milling process.

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Bosch PR20EVSK User Manual Page 4