Featured Sig Sauer Begins P320 Voluntary Upgrade Program; Details Posted Rob Curtis August 14, 2017 Join the Conversation Sig Sauer just posted the details of its P320 Voluntary Upgrade program. SIG is biting the bullet and providing the parts, service, and shipping both ways, for free. This means the company is replacing every P320 trigger, sear, and striker assembly in the wild. In addition, every slide and frame in every caliber must be machined to fit the new parts. This is no small task, considering SIG tells us there are upwards of 500,000 P320s shipped, with an unknown number of caliber exchange kits and spare grip modules out there. SIG outlines a three-step process for the upgrade. Go to SIG's Voluntary Upgrade page and enter your P320 pistol serial number. Register your upgrade request with SIG. Wait for SIG to get back to you. According to SIG, there are two timelines to be aware of. First, it's going to take a few weeks for SIG to get back to you as the company sets up the program. Second, once the company sends you a box or label and gets your pistol in-house, expect a 4-6 week turnaround. When asked last week how SIG would prioritize pistols in the upgrade queue, Tom Taylor, SIG's Vice President of sales and marketing, said customer's pistols would take priority over products in the retail and distribution pipeline. Though, he said, pistols from distributors coming back to the factory by the palette-load would have a head start. According to SIG's upgrade program FAQ, they only want slides, frames and grips with factory parts returned. Keep your mags, lights and aftermarket internals. The company doesn't explicitly address aftermarket sights, and we asked SIG's marketing team about this issue and got nothing. Based on SIG's disclosure that the company's shipped 500,000 P320's, our back-of-the-envelope estimate says the program could cost SIG as much as $30m if we assume the cost of parts, labor, and postage for each pistol is around $65. Add to that the cost of administering the voluntary upgrade program. Explore RECOILweb:The Crossfire Pack from ALPS OutdoorzGuns, Weed, and State's RightsPrecision Rifle Support Bag Buyer’s GuidePreview - Stamp Collecting: NFA Tax Stamps NEXT STEP: Download Your Free Target Pack from RECOILFor years, RECOIL magazine has treated its readers to a full-size (sometimes full color!) shooting target tucked into each big issue. Now we've compiled over 50 of our most popular targets into this one digital PDF download. From handgun drills to AR-15 practice, these 50+ targets have you covered. Print off as many as you like (ammo not included). Get your pack of 50 Print-at-Home targets when you subscribe to the RECOIL email newsletter. We'll send you weekly updates on guns, gear, industry news, and special offers from leading manufacturers - your guide to the firearms lifestyle.You want this. Trust Us.