Description

- Brand: Sig Sauer
- Model: P320 M18
- Caliber: 9mm
- Capacity: 17 or 21
- Barrel Length: 3.9"
- OAL: 7.2"
- Frame Size: Carry
- Frame Material: Stainless Steel
- Barrel Material: Carbon Steel
- Finish: Coyote PVD
- Accessory Rail: M1913
- Trigger: Standard
- Weight: 28.1 oz.

Features
The M18 was recently issued to all branches of the U.S. Military and was chosen as the official sidearm of the U.S. Marine Corps. The P320-M18 is the commercial version that brings the same unprecedented accuracy, extreme reliability and unmatched durability the military demands.

The P320-M18 comes standard with SIGLITE night sights and a removable night sight rear plate. The slide is optic ready and directly compatible with the ROMEO1 PRO. The slide and grip module are the same coyote tan as the military version, and it includes (1) 17 round magazine and (2) 21 round magazines. The P320-M18 that was chosen by the U.S. Marine Corps and the U.S Military is now available to you for the first time.

MPN#: 5165491857

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Coupons for Palmetto State Armory store

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Rebates for Sig Sauer brand

Exp. date: 01.09.2026
Buy a New Applicable SIG SAUER Handgun Between 06/01/26 and 08/31/26, Receive One (1) SIG SAUER FOXTROT-EDC COMPACT Flashlight. (SKU: SOFEC002)
*Purchases of all SIG SAUER P365, P320, M17-M18, P210, P211, P220, P226, P229 and 1911 models are included in this offer. All other SIG SAUER Handguns are excluded from this promotion.

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Reviews

Comments (4)

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I'm a sig fan, own the p226 Mk25. Between this and the Glock 19 which would you choose? I've been lurking for the 19 recently, but really like the idea of this one.

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I have a 19x and I love it, tho the trigger isn't the best. My Canik tp9sa trigger is so much better at half the price. I've been eyeballing p320 variants, including this one. Would love to find one with a red dot.

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Still out of stock. I certainly would suspect there is hundreds if not thousands of folks on the "Notify me when in stock" list. The second they get a shipment, minutes later theyre sold out again. I wonder why retailers like PSA do not order enough guns to satisfy theyre customers? Im sure they could see how many people are waiting for the stock to come in. So why not at least order say 50% of those numbers? Unless its due to manufacturer limitations? If thats the case, Sig needs to seriously hire more staff and buy more equipment!

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Out of stock just minutes after the deal posted

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