Upgrade program is only for Pre-2020 model STACCATO 2011® DUO™ Pistols that DO NOT have the single 4mm hole above the firing pin retainer.

We will CNC mill the hole and thread mill the hole to accept the factory 8-32.  This screw is used to mount the Low Profile RMR / Holosun adapter plate.

Lead Time:

The average turnaround time for direct milling on a Glock, Sig Sauer, HK, S&W and Walther is 3 weeks. For direct milling and serrations, the average turnaround time is 3-4 weeks. For custom cuts, plates or design work, the average turnaround time is 4+ weeks. All average turnaround times are subject to change as machine programs fluctuate. We ask for your patience, and your willingness to understand any delays associated during the service. When your slide arrives at CHPWS, our staff will call to review the work order. (If you are in need of an expedited service or if this is your primary duty weapon, please mention so during this call and the date in which you need it returned by) Before shipment back to you, a staff member will call to verify shipping address and any invoice payments required. We thank you for your patience, and your business.


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