Sig Sauer CAL-X SIGMCX Rattler 5.56 NATO 5.5" Bbl Caliber X-Change Kit CALX-MCX-5B-556-TAP For Sale | SHIPS FREE - SCOPELIST.com
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Sig Sauer CAL-X SIGMCX Rattler 5.56 NATO 5.5" Bbl Caliber X-Change Kit CALX-MCX-5B-556-TAP

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  • Government Export Restriction:

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    This item may be regulated for export by the U.S. Department of State or the US Department of Commerce. Please see our Export Policy.

Sig Sauer CALX-MCX-5B-556-TAP CAL-X SIGMCX Rattler 5.56 NATO 5.5" Bbl Caliber X-Change Kit

Genuine replacement barrel for the 5.5" 5.56NATO Rattler. Complete with barrel and gas block assembly.

*Please Note

This Barrel is compatible with the Rattler ONLY. This barrel is not compatible with the MCX Virtus or Legacy MCX Uppers.

It will not function with a factory .300BLK handguard. This barrel requires the 5.56NATO Rattler handguard. 


SIG SAUER offers upper assemblies and caliber exchange kits in various barrel lengths. All NFA rules apply to installation of these upper assemblies to lower receivers and caliber exchange kits to upper receivers. Upper assemblies and caliber exchange kits with barrel lengths less than 16 “may only be affixed to lower receivers which (1) are not recorded as a rifle lower by the manufacturer and do not have a stock attached to the lower receiver or (2) registered with the BATFE as a short-barreled rifle (SBR).

Please check with your local and state municipalities for any further regulatory requirements. It is your responsibility as the buyer of these components to make sure you comply with all NFA rules and applicable laws.

Specifications

Caliber or Gauge:5.56 NATO
Barrel Length:5.5 inches
Item Condition:New
UPC798681602803
MPNCALX-MCX-5B-556-TAP
Product TypeShop All Conversion Kit
BrandShop All Sig Sauer
Date First AvailableMarch 15, 2022
Last UpdatedSeptember 29, 2022
Sig Sauer CAL-X SIGMCX Rattler 5.56 NATO 5.5" Bbl Caliber X-Change Kit CALX-MCX-5B-556-TAP
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