Sig Sauer P365 FUSE, 9MM, 4.3″ Barrel, Black, Fiber Optic Front with Black Serrated Rear Sights
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Home » Shop » Sig Sauer P365 FUSE, 9MM, 4.3″ Barrel, Black, Fiber Optic Front with Black Serrated Rear Sights
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$899.99Original price was: $899.99.$849.99Current price is: $849.99.
🚚 Ships to your local FFL — order online, put your FFL dealer’s name and address in the Order notes box at checkout, and we coordinate the rest. Most firearms ship same or next business day. How buying a gun online works.
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Sig Sauer P365 FUSE is a sub-compact, striker-fired 9mm pistol with a 4.3" barrel and 21-round magazines. It suits shooters who want high capacity in a slim, optic-equipped pistol for concealed carry, home defense or the range.
9mm striker-fired, semi-auto pistol
4.3" barrel on a sub-compact polymer frame
21-round capacity with 3 magazines included
Romeo-RS Compact 3 MOA red dot optic
Fiber optic front sight, black serrated rear
Black Cerakote slide finish
SKU: SG365XF-9-BFO-RS · Mfr part #: 365XF-9-BFO-RS · UPC: 798681719983
The Sig Sauer P365 FUSE is a sub-compact 9mm pistol with a 4.3″ barrel and 21-round magazines. It is a striker-fired, semi-automatic pistol on a polymer frame, with a black Cerakote slide and a Sig LXG grip. A flared magwell helps guide the magazine in during reloads.
What sets this version apart
The FUSE pairs a 21+1 capacity with a grip module about 1″ wide. That is a lot of ammunition in a slim frame. Three magazines are included: two 21-round and one 17-round. The slide is optic ready, and this Romeo-RS version carries a Romeo-RS Compact 3 MOA red dot. Fiber optic front and black serrated rear sights give you an iron-sight option as well.
This pistol suits people who want a sub-compact pistol that still holds plenty of rounds. The slim grip makes it a practical choice for concealed carry. The 4.3″ barrel and red dot also make it a good fit for range days and home defense.
Good gear to pair with it includes a holster cut for pistols with a red dot, a belt-mounted magazine pouch, and extra magazines. You will also want 9mm ammunition for practice and for carry, plus eye and ear protection for the range. A basic cleaning kit rounds out the setup.
Sig Sauer P365 FUSE, 9MM, 4.3" Barrel, Black, Fiber Optic Front with Black Serrated Rear Sights Specifications
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
Frequently Asked Questions
Q: How many rounds does the Sig Sauer P365 FUSE hold?
A: 21 rounds. Sig Sauer rates it at 21+1 with a round in the chamber.
Q: How many magazines come with this P365 FUSE?
A: Three. Two hold 21 rounds and one holds 17 rounds.
Q: Is this P365 FUSE optics ready?
A: Yes. The slide is optic ready, and this version is the Romeo-RS model with a Romeo-RS Compact 3 MOA red dot.
Q: What size frame is the P365 FUSE?
A: Sub-compact. It has a polymer frame and a grip module about 1" wide, which suits concealed carry.
Warranty and Manufacturer
Covered by the Sig Sauer factory warranty; warranty terms come from Sig Sauer.
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