SIG Sauer P320 Compact 9mm Nitron Slide with DLC Coated Barrel Striker-Fired Semi-Automatic Pistol SIG PRO Optic Footprint

A: Hi Robert and welcome. Yes Sir it is. Buds will ship without non-compliant magazines. Cheers, stay safe and enjoy!

A: Yes it is Legal for WA. Bud's will simply remove the non-compliant 15 round mags. You'll need to replace them yourself. Here's a 10 round promag below. https://www.budsgunshop.com/product_info.php/products_id/717163128/promag+sig+25+sig+sauer+p320

A: you can buy it and buds will ship it to your selected FFL however it will ship with no magazines included youwouldthen need to purchase your own compliant magazines

A: Hi Robert, yes sir, Bud's will ship this to WA state without the magazines. You would need to obtain your own 10rd magazines. Mags here https://www.budsgunshop.com/product_info.php/products_id/717163128/promag+sig+25+sig+sauer+p320 , . Or you can just buy the 10rd model here https://www.budsgunshop.com/product_info.php/products_id/166701/sig+p320+compact+9mm+black+3.9+siglite+or+10rd , Stay safe & have a great day!

A: Hi Alex and welcome. Newer Sig P320 are compatible with the RMR footprint. This guide will help you come up with the best setup for you: https://freedomgorilla.com/blogs/news/best-sig-p320-holosun-optics-adapter-filler-plates#:~:text=The%20Holosun%20SCS%20320%20is,Romeo%201%20Pro%20optic%20cut.

A: RMR footprint

A: Hi Alex, anything with the RMR footprint will work. Stay safe & have a great day!

A: Hi Jackie and welcome. https://www.sigsauer.com/springer-precision-low-profile-magwell.html ------- Cheers, stay safe and enjoy!

A: M4 x 0.7mm

A: Hi Logan and welcome. The factory 320 optic plate has M4 x 0.7 hex head (2.5mm) cap screws to retain it. Cheers, stay safe and enjoy!

A: M4 x 0.7mm

A: Hi Logan, the factory 320 optic plate has M4 x 0.7 hex head cap screws. Stay safe & Happy Holidays!

A: Yes, the Sig Sauer P320 Compact 9mm pistol is designed and rated to handle +P ammunition. That being said, using +P ammo may cause premature wear on the internals so you'll want to perform inspections more often if feeding a steady diet of +P.

A: Hi Louis and welcome. Yes, +P ammunition is no issue. Just increase inspection and maintenance frequency and it will be fine. Please pay particular attention to the expended case head and mouth for any signs of overpressure such as bulges or abnormal expansion. Cheers, stay safe and enjoy!

A: Hi Louis, If you look at the owner manual for the P320, it clearly states the firearm is rated for SAAMI spec ammunition. Since 9mm +P is a SAAMI specification, yes it will handle +P ammo. Stay safe & have a great day!