SIG M18 9MM X-Change Kit

SIG Sauer

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NEW SIG Sauer M18 (P320) X-Change Kit

This is a SIG SAUER M18/P320 X-change kit to convert your existing P320 into an M18-clone. Comes with the complete M18 slide and barrel for 9mm, Carry coyote grip and 3 (three) OEM magazines (one 17rd and two 21rd) with coyote baseplate (STATE RESTRICTIONS APPLY)PVD coated Stainless Steel in SIG Coyote Tan. Comes with SIGLITE® Night Front Sight and removable Night Sight rear plate. 3.9" Compact 9mmx19 Barrel, all factory new parts. FCU parts or manual safety parts not included. 

You get everything you see pictured. THIS IS FOR THE COMPLETE SLIDE, BARREL RECOIL SPRING, NON-SAFETY GRIP AND 2 MAGAZINES ONLY. (Slide includes all slide internals, i.e. extractor, spring, striker assy., etc.) No other lower parts, manual safety parts or serialized frame are included.

This kit will work in any P320 Carry, Compact or X-Compact that has been upgraded with the drop-safe (post-upgrade) parts (except 45acp).

Factory lube may be present on the parts. Note that the rear optic cut is cut per MHS contract and fits Romeo1Pro or Leupold Deltapoint Pro. Fits other optics with adapter plate (i.e. Springer Precision or Bobro Engineering).

Includes: 1 M18 Coyote complete slide with night sights, 9mm barrel, recoil spring, non-manual safety grip and 2 OEM magazines (as shown in pics), SIG #8900268.

Serialized Frame, FCU parts or additional magazines  NOT INCLUDED. NO FFL REQUIRED.


17RD or 21RD magazines will not ship to restricted states unless LEO credentials or high-cap permit is provided. 10RD mags are available if you reside in a restricted state. Mags will be blocked and epoxied, or substituted for a factory 10rd magazine, if available.

Blocked magazines will add 1-3 days.

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  • 5

    Posted by JJ on Nov 12th 2022

    This is a great kit. I originally wanted to go with a full size kit but they were out of stock and I'm glad they were. Really can't say anything negative about this product and to make it even better it's coming from a great company with amazing service.

  • 5
    Once Again

    Posted by Charlie on Mar 11th 2022

    This is to easy. I could be in trouble. Every time I shop on ABPrototype, I get what I am looking for. Fast delivery with constant updates . Once again, thanks guys.