Description
Product Description
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Description: Sig Sauer MCX Cal-X Kit, 5.56 NATO 11.5″ Barrel. This is a factory original Sig Sauer part, made to the highest standards for your Sig Sauer firearm. For the ultimate in versatility, SIG SAUER is pleased to release SIG MCX conversion kits. With a single Torx bit, an MCX owner can change caliber and barrel length in less than a minute. This 11.5″, 5.56MM kit includes a complete barrel assembly, installation instructions and a .300 BLK warning card.
** This item has been discontinued. This item has been replaced by SKUCALX-MCX-11B-556-TAP. **
Note: All NFA/ATF Rules Apply. You May Not Install This Barrel Assembly On Your MCX Rifle Unless It Is A Registered SBR. It is recommended that all Sig Sauer parts be installed by a qualified and trained gunsmith.
Manufacturer: Sig Sauer
PRODUCT SPECIFICATIONS:
- Barrel Length: 11-1/2″
- Barrel Thread Pitch: 1/2″ x 28 TPI
- Brand: Sig Sauer
- Caliber: .223 Rem,5.56x45mm
- Finish / Color: Black
- Firearm Type: Rifle
- Material: Steel
- Models Fit: Sig Sauer MCX








