BASTION for Sig Sauer P320 Rear Slide Back Plate Cover Aluminum Black 9mm/357 SIG/40 Cal. - Blank…
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Updated
Dec 17, 2025
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ALL P320 MODELS CHAMBERED IN 9MM, 357 SIG, AND 40 Cal.: made to snap perfectly in place allowing you to conveniently personalize your Sig P320 Backplate.
WILL NOT FIT | NOT COMPATIBLE with P320 45 AUTO M17 M18 LEGION ANY X SERIES
REPLACEMENT FOR PLASTIC FACTORY PART: Not only keeps your firing pin and the extractor plunger assembly in place, but it also adds a little flair to your plain old plastic backslide cover.
REMIUM HARD COAT ANODIZED T6 MACHINED ALUMINUM: Premium quality Sauer 320 Butt Plate that is machined from the highest quality, hard coat anodized black aluminum that stays tough and durable even when removed and replaced from time to time, giving you the extreme durability, you deserve. Laser-Engraved makes a huge difference!
BASTION SATISFACTION GUARANTEE: Buy risk-free! Please do reach out to us in case of any issues and we will quickly do all we can to make it right.
WILL NOT FIT | NOT COMPATIBLE with P320 45 AUTO M17 M18 LEGION ANY X SERIES
REPLACEMENT FOR PLASTIC FACTORY PART: Not only keeps your firing pin and the extractor plunger assembly in place, but it also adds a little flair to your plain old plastic backslide cover.
REMIUM HARD COAT ANODIZED T6 MACHINED ALUMINUM: Premium quality Sauer 320 Butt Plate that is machined from the highest quality, hard coat anodized black aluminum that stays tough and durable even when removed and replaced from time to time, giving you the extreme durability, you deserve. Laser-Engraved makes a huge difference!
BASTION SATISFACTION GUARANTEE: Buy risk-free! Please do reach out to us in case of any issues and we will quickly do all we can to make it right.
