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Uppers


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MCX RATTLER 5.5" Barrel 5.56 NATO Upper Assembly mcx rattler, mcx upper, 5.5" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly
Sig Sauer
MCX RATTLER 5.5" Barrel 5.56 NATO Upper Assembly
Retail: $1,999.99
Price: $1,699.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer Item #: SIG WUAMCX-5B-556-BLK-TAP -

MCX Upper 300 Blk Assembly mcx rattler, mcx upper, 5.5" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly
Sig Sauer
MCX Upper 300 Blk Assembly
Retail: $1,999.00
Price: $1,499.00-$1,549.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer

MCX-SPEAR LT 11.5 UPPER AR CONVERSION KIT 5.56 NATO mcx lt, mcx upper, 9" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly, sig mcx lt upper, sig lt 11.5" upper, Sig Sauer MCX 11.5" Upper
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Sig Sauer
MCX-SPEAR LT 11.5 UPPER AR CONVERSION KIT 5.56 NATO
Retail: $1,999.00
Price: $1,749.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer

Adapts with any M4/AR15 Spec Lower AssemblyDual Rod Recoil Assembly Eliminates Buffer SystemM4 Adapter allows for Pic Rail Folding Stock CapabilitiesAdjustable Gas System for Suppressor OptimizationQuick Change Barrel Design allows to easily swap calibers and barrel lengthsGas Piston Design Reduces Part Exposure to Carbon FoulingDesigned to go 20k rounds before any part replacementsSLX/SLH Next Gen Suppressor Designed QD Flash Hider for Clutch-Lok AdaptabilityAmbidextrous Charging Handle with...

MCX-SPEAR LT 14.5" AR CONVERSION KIT 5.56 NATO mcx lt, mcx upper, 14.5" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly, sig mcx lt upper, sig lt 14.5" upper, Sig Sauer MCX 14.5" Upper
New!
Sig Sauer
MCX-SPEAR LT 14.5" AR CONVERSION KIT 5.56 NATO
Retail: $1,999.00
Price: $1,749.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer

Adapts with any M4/AR15 Spec Lower AssemblyDual Rod Recoil Assembly Eliminates Buffer SystemM4 Adapter allows for Pic Rail Folding Stock CapabilitiesAdjustable Gas System for Suppressor OptimizationQuick Change Barrel Design allows to easily swap calibers and barrel lengthsGas Piston Design Reduces Part Exposure to Carbon FoulingDesigned to go 20k rounds before any part replacementsSLX/SLH Next Gen Suppressor Designed QD Flash Hider for Clutch-Lok AdaptabilityAmbidextrous Charging Handle with...

MCX-SPEAR LT 16" AR CONVERSION KIT 5.56 NATO-BLACK mcx lt, mcx upper, 9" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly, sig mcx lt upper, sig lt 9" upper, Sig Sauer MCX 9" Upper
New!
Sig Sauer
MCX-SPEAR LT 16" AR CONVERSION KIT 5.56 NATO-BLACK
Retail: $1,999.00
Price: $1,749.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer Item #: SIG WUAMCXA-556N-16B-LT -

Thread pitch 1/2x28 Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

MCX-SPEAR LT 16" AR CONVERSION KIT 5.56 NATO-COYOTE mcx lt, mcx upper, 16" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly, sig mcx lt upper, sig lt 16" upper, Sig Sauer MCX 16" Upper
New!
Sig Sauer
MCX-SPEAR LT 16" AR CONVERSION KIT 5.56 NATO-COYOTE
Retail: $1,999.00
Price: $1,749.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer Item #: SIG WUAMCXA-556N-16BLTCOY -

Thread pitch 1/2x28 Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

MCX-SPEAR LT 6" AR CONVERSION KIT 300BLK mcx lt, mcx upper, 6" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly, sig mcx lt upper, sig lt 6" upper, Sig Sauer MCX 6" Upper, sig 300blk upper, 300blk upper assembly, sig 6" 300blk upper assembly
Sig Sauer
MCX-SPEAR LT 6" AR CONVERSION KIT 300BLK
Retail: $1,999.00
Price: $1,749.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer Item #: SIG WUAMCXA-300B-6B-LT -

Thread pitch 1/2 x  28 Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK mcx lt, mcx upper, 9" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly, sig mcx lt upper, sig lt 9" upper, Sig Sauer MCX 9" Upper
New!
Sig Sauer
MCX-SPEAR LT 9" AR CONVERSION KIT 300BLK
Retail: $1,999.00
Price: $1,749.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer

Thread pitch 5/8 in - 24 Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

MCX-SPEAR LT 9" AR CONVERSION KIT 5.56 NATO- BLK mcx lt, mcx upper, 9" upper assembly, sig mcx, sig mcx upper, sig mcx upper assembly, sig mcx lt upper, sig lt 9" upper, Sig Sauer MCX 9" Upper
Sig Sauer
MCX-SPEAR LT 9" AR CONVERSION KIT 5.56 NATO- BLK
Retail: $1,999.00
Price: $1,749.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer Item #: SIG WUAMCXA-556N-9B-LT -

Thread pitch 1/2 x  28 Compatible with the following lowers: MCX, M400, 516, and any MIL-SPEC AR-15/M4.

SLIDE, 365, 3.1IN, 9, XRAY3, Comp, ROMEO-X COMPACT
Sig Sauer LE/Mil
SLIDE, 365, 3.1IN, 9, XRAY3, Comp, ROMEO-X COMPACT
Retail: $649.99
Price: $479.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer LE/Mil Item #: SIG WSLIDE-365XL-9COMPRXX -

This is a complete slide assembly, including all internal slide parts, and front and rear XRAY3 Day/Night sights. 3.1" Barrel and recoil spring assemblies are sold separately. 2 MOA Red Dot / 32 MOA Circle - ROMEO-X COMPACT Compatible with both the P365, P365X and P365XL grip modules. **Note** Does not include a rear sight plate **Note** Does not include Grip Module or FCU. Slide Assembly only.

SLIDE, 365XL, 3.7IN, 9, XRAY3, ROMEO-X COMPACT
Sig Sauer LE/Mil
SLIDE, 365XL, 3.7IN, 9, XRAY3, ROMEO-X COMPACT
Retail: $649.99
Price: $479.00
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Availability: Out Of Stock / Not Available For Back Orders
Sig Sauer LE/Mil Item #: SIG WSLIDE-365XL-9BXR3RXX -

This is a complete slide assembly, including all internal slide parts, and front and rear XRAY3 Day/Night sights. 3.7" Barrel and recoil spring assemblies are sold separately. 2 MOA Red Dot / 32 MOA Circle - ROMEO-X COMPACT Compatible with both the P365X and P365XL grip modules. **Note** Does not include a rear sight plate **Note** Does not include Grip Module or FCU. Slide Assembly only.