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CAL-X KIT, P365-380, 3.1", BLACK sig p335, sig p365 380 exchange kit, 365 exchange kit, sig caliber exchange kit, sig p365 caliber exchange kit, calx, 365 calx, p365 calx kit
Sig Sauer
Retail: $399.99
Price: $310.00
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Sig Sauer Item #: SIG 8900719 -

CAL-X KIT, P365-XL, 3.7", BLACK sig p365, sig p365 380 exchange kit, 365 exchange kit, sig caliber exchange kit, sig p365 caliber exchange kit, calx, 365 calx, p365 calx kit, 365XL calx, 365xl caliber exchange kit, p365XL
Sig Sauer
Retail: $499.99
Price: $390.00
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Sig Sauer Item #: SIG 8901442 -

M17 Caliber X-Change Kit sig m17, sig p320, sig p320 m17, m17 exchange kit, sig caliber exchange kit, sig m17 caliber exchange kit, m17 calx
Sig Sauer
Retail: $549.99
Price: $429.00
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Sig Sauer Item #: SIG 8900267 -

M18 Caliber X-Change Kit sig m18, sig p320, sig p320 m18, m18 exchange kit, sig caliber exchange kit, sig m18 caliber exchange kit, calx, m18 calx, m18 calx kit
Sig Sauer
Retail: $549.99
Price: $429.00
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Sig Sauer Item #: SIG 8900268 -

MCX Rattler 5.5" Caliber Exchange Kit - 5.56 sig, sig sauer, sig sauer mcx, sig mcx, sig mcx barrel, sig mcx barrel 5.56, sig 5.56 barrel, sig rattler barrel, sig rattler
Sig Sauer
Retail: $899.99
Price: $729.00
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Sig Sauer Item #: SIG WCALX-MCX-5B-556-TAP -

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

P320 Carry Caliber Exchange Kits
Sig Sauer
Retail: $429.99
Price: $336.00
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Sig Sauer

P320 Compact Caliber Exchange Kits
Sig Sauer
Retail: $429.99
Price: $336.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer

P320 Full-Size Caliber Exchange Kits
Sig Sauer
Retail: $429.99
Price: $336.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer

P320 Sub-Compact Caliber Exchange Kits
Sig Sauer
Retail: $429.99
Price: $336.00
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Sig Sauer Item #: SIG CALX-320SC -

P320 XFIVE TXG Caliber X-Change Kit sig, sig p320, sig p320 x5, P320 XFIVE TXG Caliber X-Change Kit, sig caliber exchange kit, sig P320 XFIVE TXG Caliber X-Change Kit
Sig Sauer
Retail: $799.99
Price: $599.99
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Sig Sauer Item #: SIG 8900269 -

includes everything except the serialized fire control unit: slide assembly, barrel, recoil spring, guide rod, sights, grip module, magwell, grip weight, and two 17 round magazines.medium grip module.only milled to accept the Romeo1 Pro/Delta Point Pro opticsslide can only be used with the X-Five Legion 5" heavy barrel.5" bull/heavy barrel without the LCI cut.can be used with P320 models chambered in 9mm, 40 S&W, or .357 SIG. It is not compatible with any P320 models chambered in .45ACP. ...

P365-XMACRO COMP CAL-X KIT, BLACK sig p335, sig p365 380 exchange kit, 365 exchange kit, sig caliber exchange kit, sig p365 caliber exchange kit, calx, 365 calx, p365 calx kit
Sig Sauer
Retail: $619.99
Price: $499.00
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Sig Sauer Item #: SIG 8901443 -

CAL-X KIT, SIGMCX, 5.56 NATO, 11.5IN, LT SIG, SIG SAUER, sig le/mil, sig mcx, sig mcx sbr, sig Spear SBR, SBR Spear, SIG 5.56 Spear, SIG 5.56 SBR Spear, SIG MCX LT Spear, sig MCX Spear Caliber Exchange, 11.5" Caliber Exchange Kit
Sig Sauer LE/Mil
Retail: $999.99
Price: $729.00
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Sig Sauer LE/Mil Item #: SIG WCALX-MCX-556N-11B-LT -

CAL-X KIT, SIGMCX, 5.56 NATO, 14.5IN, LT SIG, SIG SAUER, sig le/mil, sig mcx, sig mcx sbr, sig Spear SBR, SBR Spear, SIG 5.56 Spear, SIG 5.56 SBR Spear, SIG MCX LT Spear, sig MCX Spear Caliber Exchange, 14.5" Caliber Exchange Kit
Sig Sauer LE/Mil
Retail: $899.99
Price: $729.00
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Sig Sauer LE/Mil Item #: SIG WCALX-MCX-556N-14B-LT -

CAL-X KIT, SIGMCX, 5.56 NATO, 16IN, LT sig, sig sauer, sig mcx, sig mcx spear, sig mcx spear 16" barrel, sig 16" MCX Spear 5.56, 5.56 MCX Spear LT Barrel
New!
Sig Sauer LE/Mil
Retail: $999.99
Price: $729.00
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Sig Sauer LE/Mil Item #: SIG WCALX-MCX-556N-16B-LT -

MCX Rattler 5.5" Caliber Exchange Kit - 300BLK
Sig Sauer LE/Mil
Retail: $999.99
Price: $729.00
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Sig Sauer LE/Mil Item #: SIG WCALX-MCX-5B-300-TAP -

Genuine replacement barrel for the 5.5" 300BLK Rattler. Complete with barrel and gas block assembly.. 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...

MCX SPEAR LT 9" 300BLK BARREL AND GAS BLOCK ASSEMBLY SIG, SIG SAUER, sig le/mil, sig mcx, sig mcx sbr, sig Spear SBR, SBR Spear, SIG 300BO Spear, SIG 300BO SBR Spear, SIG MCX LT Spear SBR, SIG MCX Spear LT 300BO SBR
Sig Sauer LE/Mil
Retail: $899.99
Price: $699.00
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Sig Sauer LE/Mil Item #: SIG 8901315 -

MCX SPEAR LT 9" Caliber Exchange Kit - 300BLK SIG, SIG SAUER, sig le/mil, sig mcx, sig mcx sbr, sig Spear SBR, SBR Spear, SIG 300BO Spear, SIG 300BO SBR Spear, SIG MCX LT Spear SBR, SIG MCX Spear LT 300BO SBR
Sig Sauer LE/Mil
Retail: $999.99
Price: $729.00
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Sig Sauer LE/Mil Item #: SIG WCALX-MCX-300B-9B-LT -

MCX SPEAR LT 9" Caliber Exchange Kit - 5.56 NATO
Sig Sauer LE/Mil
Retail: $999.99
Price: $729.00
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Sig Sauer LE/Mil Item #: SIG WCALX-MCX-556N-9B-LT -

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...

MCX Virtus 9" Caliber Exchange Kit - 300BLK
Sig Sauer LE/Mil
Retail: $699.99
Price: $570.00
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Sig Sauer LE/Mil Item #: SIG WCALX-MCX-9B-300-TAP -

MPX G2 4.5" BARREL - 9MM sig, sig sauer, sig mpx, sig sauer MPX, sig sauer mpx 4.5 inch, 4.5in MPX caliber exchange kit, SIG 4.5" Caliber Exchange Kit, MPX caliber exchange kit
Sig Sauer LE/Mil
Retail: $799.99
Price: $639.00
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Sig Sauer LE/Mil Item #: SIG CALX-MPX-4B-9-G2 -

MPX G2 6.5" Barrel - 9mm sig, sig sauer, sig mpx, sig sauer MPX, sig sauer mpx 6.5 inch, 6.5in MPX caliber exchange kit, SIG 6.5" Caliber Exchange Kit, MPX caliber exchange kit
Sig Sauer LE/Mil
Retail: $799.99
Price: $639.00
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Sig Sauer LE/Mil Item #: SIG CALX-MPX-6B-9-G2 -

MPX G2 8" BARREL - 9MM
Sig Sauer LE/Mil
Retail: $799.99
Price: $639.00
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Sig Sauer LE/Mil Item #: SIG CALX-MPX-8B-9-G2 -