**IMPORTANT: You must check the accompanying video to ensure your Sig P320 M17 has the same optic cut from Sig Sauer.
This is a aluminum optic mount with stainless steel threads for the Sig Sauer P320 M17 pistol or X5 LEGION. We have mounts specifically for:
C-more RTS2/STS2
Sig Romeo 3 Max/XL
The mount is specific to the optic. It uses the factory threaded holes to mount the plate to the slide. New screws, hex wrenches and thread locker provided.
The ACSS Vulcan 509T will hang off the end of the optic mount/slide, so we do not recommend using our 509T mount for it.
.65 oz
Identify your slide
Installation Instructions
**Designed to only fit the Sig Sauer M17, M18, X-Five Legion, X-Full, X-Carry Legion, and X-Compact without the rear dovetail. WILL NOT FIT OTHER MODELS and may not work on Military issue M17 models or commemorative editions**
Does NOT work with the RX, RXP, X-Five/X-Carry, V-TAC or Pro/LE Pro P320 models. Click Here for Installation Instructions

Fits like a glove
Fit great. Would get this again. Fast shipping too.
R3 xl plate
Perfect fit,easy install, fast shipping
SP Optic Plate
Fits like its Factory Made! Comes with ALL necessary hardware too! Awesome product!
Romeo3 max mount plate
Fits my x5 legion perfectly. All mount bolts on top, instead of having to put 2 screws in from the bottom. Great job guys.
Works great
This is the 2nd one of these that I purchased for my 2nd Sig P320 Legion X Frame. It works great. Both of them required a slight amount of fitment to work though. But it was literally 5 strokes with a file and now it fits perfectly. The first one I bought is at least a year old with 6-7K rounds under its belt and no issues.