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SIG SAUER MPX Caliber X-Change Kit w/ Free S&H — 3 models

SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G2
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SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
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SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
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SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
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SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
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SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
6 of 7 images
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2
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SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2

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Questions & Answers
Will this work with gen 3 MPX K model with mlok? Expert Answer

The SIG SAUER MPX Caliber X-Change Kit will work on a Gen 3 MPX K.

by Hunter, Gear Expert, August 11, 2023
What is this changing the caliber to? I’ve only seen 9mm MPX’s. Or is this just a barrel exchange & caliber stays the same?

barrel exchange

by pat, Verified Owner, April 16, 2018
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Customer Reviews
Most Recent Reviews Excellent nail driver by Dan, Verified Owner, February 4, 2022
Swapped out the 4.5" on my MPX K. This is a quality upgrade giving your hand a little more room to spread out on a longer handguard. I don't plan to suppress and this thing is is a naildriver. If you can find one, get it
Most Recent Reviews Outstanding by Kmh, October 9, 2019
Quality Sig part, easy swap with 16” PCC barrel. Bought it, along with a Midwest industries handguard, to convert a PCC to an SBR, works flawlessly. No appreciable loss in accuracy due to the shorter barrel and still runs smooth
Read All 2 Reviews
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Expert Advice

Product Info for SIG SAUER MPX Caliber X-Change Kit

This is a 6" barrel for the Second Generation of the MPX Platform.image

WARNING: California`s Proposition 65

Specifications for SIG SAUER MPX Caliber X-Change Kit:

Manufacturer: SIG SAUER
Magazine Capacity: 0 Round
Magazine Included: No

Package Contents:

  • SIG SAUER MPX Caliber X-Change Kit

SIG SAUER MPX Caliber X-Change Kit Orderable Models

List of Orderable Models

SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G2 , MPN: CALX-MPX-6B-9-G2 , UPC: 798681555086 , Code: SD9-CNC-MPXCX-CALX-MPX-6B-9-G2-0RD
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2 , MPN: CALX-MPX-4B-9-G2 , UPC: 798681555062 , Code: SD9-CNC-MPXCX-CALX-MPX-4B-9-G2-0RD
DEMO, SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G2 , MPN: CALX-MPX-4B-9-G2-DEMO , Code: SD9-CNC-MPXCX-CALX-MPX-4B-9-G2-0RD-DEMO

SIG SAUER MPX Caliber X-Change Kit Unavailable & Discontinued Models

List of Unorderable Models

USED EDEMO DEMO, SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G2, EDEMO1, EDEMO1, Condition Fair, Other , MPN: CALX-MPX-6B-9-G2-DEMO-EDEMO1-EDEMO1 , Code: SD9-CNC-MPXCX-CALX-MPX-6B-9-G2-EDEMO-OT-D-0RD
SIG SAUER Sig MPX Gen 1 Caliber X-Change Kit, 9 mm, 4.5 in, CALX-MPX-4B-9-G1 , MPN: CALX-MPX-4B-9-G1 , UPC: 798681554317 , Code: SD9-CNC-MPXCX-CALX-MPX-4B-9-G1
SIG SAUER Sig MPX Gen 1 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G1 , MPN: CALX-MPX-6B-9-G1 , UPC: 798681555079 , Code: SD9-CNC-MPXCX-CALX-MPX-6B-9-G1
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 16 in, CALX-MPX-16B-9-G2 , MPN: CALX-MPX-16B-9-G2 , UPC: 798681555055 , Code: SD9-CNC-MPXCX-CALX-MPX-16B-9-G2
SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 8 in, CALX-MPX-8B-9-G2 , MPN: CALX-MPX-8B-9-G2 , UPC: 798681555109 , Code: SD9-CNC-MPXCX-CALX-MPX-8B-9-G2
DEMO, SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G2 , MPN: CALX-MPX-6B-9-G2-DEMO , Code: SD9-CNC-MPXCX-CALX-MPX-6B-9-G2-DEMO-0RD
DEMO, SIG SAUER Sig MPX Gen 2 Caliber X-Change Kit, 9 mm, 6.5 in, CALX-MPX-6B-9-G2 , MPN: CALX-MPX-6B-9-G2-DEMO , Code: SD9-CNC-MPXCX-CALX-MPX-6B-9-G2-0RD-DEMO
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