Description
Shop the official P320 FULL-SIZE 9MM 4.7″ SLIDE ASSEMBLY, SIG-LOC READY. The ultimate sig p320 optic ready slide for duty and competition. This 4.7″ slide assembly is finished in Coyote Brown, and black fits all P320 FULL-SIZE 9mm grip modules. This slide features the new SIG-LOC (Leverage Optimized Connection) PRO footprint, providing the industry’s strongest, most rigid interface between your optic and pistol slide.
Only available on SIG SAUER slides, SIG-LOC establishes five points of contact between the slide and optic to eliminate a shift in zero created by extensive shock from recoil and harsh impacts. This is a complete slide assembly, including all internal slide parts, and front and rear XRAY3 Day/Night sights. 4.7″ Barrel and recoil spring assemblies are sold separately.
P320 Full-Size 9MM 4.7″ Complete Slide Features:
- SIG-LOC Optic ready, capable of mounting both SIG-LOC PRO and SIG SAUER PRO footprints.
- XRAY3 Day/Night sights.
- Removable flush-fit optics plate with top accessible screws.
- Coyote Brown PVD
For use with:
-Standard 9MM, 4.7″ non-threaded, or 5.5″ threaded barrels.
-P320-XFULL & P320-XCARRY Grip mods and Compact (non-X) grip mods.
P320 FULL-SIZE 9MM 4.7″ SLIDE ASSEMBLY, SIG-LOC READY
When it comes to duty-grade reliability and match-grade accuracy, the P320 FULL-SIZE 9MM 4.7″ SLIDE ASSEMBLY, SIG-LOC READY stands in a class of its own. Designed for the shooter who demands a longer sight radius and maximum muzzle velocity, this p320 4.7 slide is the definitive choice for home defense, duty use, and competitive shooting.
Engineered with the new SIG-LOC ready interface, this assembly represents the next evolution of the sig p320 optic ready slide. The SIG-LOC slide system provides a rock-solid, recessed mounting point that ensures your optic sits lower and holds zero better than traditional plate systems, offering a cleaner profile and a more natural co-witness with iron sights.
 The SIG-LOC READY 4.7″ Full-Size Advantage
The p320 4.7 sig loc slide is built to withstand the rigors of high-volume fire. Whether you are upgrading a standard Nitron model or building from a Custom Works FCU, this P320 full-size 9mm pistol 4.7″ upper slide assembly offers a softer recoil impulse and flatter shooting experience compared to compact variants.
For those who prioritize aesthetics and weight reduction, this assembly mirrors the high-end features found in a p320 pro cut slide, including precision-engineered serrations for positive manipulation under any conditions. While the Pro Cut focuses on windowed relief, the sig-loc slide focuses on the structural integrity and modularity required for professional-grade optics.
Key Features of the p320 SIG-LOC Ready Assembly
- SIG-LOC Interface: The industry-leading sig-loc slide mounting system for the most secure optic fitment available.
- Full-Size Ballistics: The 4.7-inch length maximizes the 9mm cartridge’s potential for superior accuracy.
- Duty-Ready Finish: Coated in a durable Nitron finish to resist corrosion and extreme wear.
- XRAY3 Day/Night Sights: Comes standard with high-visibility sights for low-light environments
Compatibility & Installation
This sig p320 optic ready slide is a genuine factory replacement, ensuring 100% compatibility with all Full-Size and Carry-sized P320 grip modules.
Note: This assembly requires a 4.7″ non-threaded barrel and a full-size recoil spring guide rod (sold separately or as part of a complete caliber X-change kit).
SIG P320 4.7″ Full-Size Upper Assembly | SIG-LOC Ready Optic Cut
Buy the p320 4.7 sig loc slide today. SIG Sauer P320 Full-Size 4.7 Inch Slide Assembly with SIG-LOC Ready optic mounting system and Nitron finish.
Molly –
New Upper, Same SIG
Roger –
“Everything arrived safe and sound. Thanks for the sticker!”
Jeremy –
“Replaced my compact slide with this full-size one. The difference in muzzle flip is night and day. Highly recommend making the switch if you’re on the fence.”
Ashley R. –
“High quality, fast shipping. Will buy again.”
Ethan –
“Finally got it! The wait was worth it. It’s gorgeous.”
Jerry –
“This long slide makes the recoil impulse feel like a .22. It’s insane!”
Aaron –
“So glad I found this website. No scams, just parts. Thanks y’all!”
Jose –
“Fits my holster, fits my frame, hits the target. What more could I ask for?”
Dennis –
“Legit product, legit sellers. Don’t hesitate.”
Patrick –
“Ran 115gr, 124gr, and even some cheap steel case through it today. Ate it all. No failures to feed, no stovepipes. Reliability is king for me, and this assembly delivers.”
Jessica –
“Photos didn’t do it justice. In person, the serrations are crisp and the coating feels super durable. It locks up tight with zero wobble. Very happy camper.”
Larry –
“Does exactly what it says on the tin. No fuss, no drama. Just a solid piece of steel that runs. Love it.”
Scott –
“I’ve been slowly upgrading my P320 and this was the final piece of the puzzle. It looks mean! The black finish matches my lower perfectly. I’m literally sitting here just admiring it on my desk. Thanks for the quick turnaround!”
Jonathan –
“Ordered on Tuesday morning, on my porch Thursday afternoon. Are you guys wizards? The assembly was ready to go right out of the box, plenty of lube, everything tight. A+ service.”
Gary –
“Just wow. I swapped my old setup for this 4.7-inch beauty and my groups at 25 yards tightened up immediately. The balance is perfect. I felt like a pro shooter today. Cannot wait to get back out there next weekend!”
Jeffrey –
“I’ve been hunting for this specific SIG-LOC configuration for months. Everywhere else was out of stock or looked sketchy. Not only did you guys have it, but it got to my doorstep in Texas in record time. The finish is flawless—no tooling marks, just pure quality. I’m so hyped to finally finish this project.”
George –
“I was hesitant about the price at first, but opening the box changed my mind instantly. The machining is just cleaner than the other aftermarket stuff I’ve tried. It cycles so smooth, it feels like it’s on ball bearings. Took it to the range this morning and put 200 rounds through it without a single hiccup. Absolutely thrilled.”
Joshua –
“Okay, I have to admit I was sweating bullets hitting the ‘buy’ button. I’ve been burned twice this year by fake parts sites that took my money and vanished. When I got a tracking number from you guys within an hour, I almost did a backflip. The slide arrived two days later, well-packaged and exactly as described. You have no idea how refreshing it is to deal with a legit company. You’ve earned a customer for life!”
Ronald –
“I called in because I wasn’t 100% sure if this would mate with my specific grip module setup. The guy I talked to (didn’t catch his name, but he sounded super chill) knew his stuff inside and out. He didn’t just read off a script; he actually walked me through the fitment. Received the package yesterday, slapped it on, and it fits like a glove. Big shout out to the support crew for actually caring!”