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Q&A for SIG SAUER XSeries 3.9in Slide Assemblies — 13 Questions & 15 Answers

Name SIG SAUER XSeries 3.9in Slide Assemblies (3.5)
$699.00 $589.99 Save 16%
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Q
Jr, member, from WI, United States, asked on December 24, 2021

Does this slide have the slide internals? Plate, extractor, FP, etc.

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

This Sig Sauer XSeries 3.9in Slide Assembly just comes with the slide, no internal components.

0 of 4 found the following answer helpful.
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Q
Jason Duclos, member, from MA, United States, asked on April 19, 2022

What caliber is this slide. It says 9, 357sig and 40 in the description

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on May 03, 2022

These Sig Sauer XSeries 3.9in Slide Assemblies are compatible with 9mm barrels. However, they will accept 9mm, .357 Sig, 40 S&W Fire Control Units.

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Q
roy, member, from NV, United States, asked on March 12, 2022

will this slide work with a 357 caliber 3.9 inch barrel ?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on April 18, 2022

Yes. The Sig Sauer XSeries 3.9in Slide Assembly will work with your .357, 3.9" barrel.

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Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

The manufacturer doesn't state if the Sig Sauer XSeries 3.9in Slide Assemblies are compatible with the recall modifications but the Romeo 1 Pro will only come in black.

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Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

The white version of the Sig Sauer XSeries 3.9in Slide Assemblies is painted white.

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Q
Jordhu, guest, from PA, United States, asked on November 03, 2021

Does this come with the metal shroud attached?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

The Sig Sauer XSeries 3.9in Slide Assemblies do not come with the metal shroud.

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Q
Travis, guest, from NC, United States, asked on August 14, 2021

Does it come with a barrel and recoil spring?

Expert Answer
A
Answered by Brandon B, Gear Expert, from IL, United States, on August 16, 2021

No it does not. It only comes with the following:
Sig Sauer XSeries 3.9in Slide Assemblies
Romeo1Pro mounted on top ready for use.
Equipped with our suppressor height X-ray night sights

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Q
not joe biden, guest, from GA, United States, asked on July 06, 2021

can you get the 3 MOA option ?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

These Sig Sauer XSeries 3.9in Slide Assemblies just come with the 6 MOA Romeo 1 Pro Sight.

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Q
Frank, guest, from MS, United States, asked on June 21, 2021

Does this assy work with a M18 with a safety? Thanks

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

Yes, these Sig Sauer XSeries 3.9in Slide Assemblies should be compatible.

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Q
J Sanders, member, from CA, United States, asked on April 26, 2021

Is this a complete slide?

Expert Answer
A
Answered by Brandon B, Gear Expert, from IL, United States, on August 16, 2021

This item is just the slide but does come with a Romeo1Pro mounted on top, ready for use.

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Last updated 2025-11-12 UTC.