Sig Sauer MCX

Parts listed here are designed for the Sig Sauer MCX pistol/rifle platform chambered in .223 Rem/5.56x45mm or .300 Blackout unless noted otherwise. MGW carries many replacement stocks, handguards, magazines, triggers, barrels, parts kits, springs, pins and other components for this modular firearm model. Service your Sig MCX with quality OEM and aftermarket parts/components to ensure a solid performance from every shot.

The schematic may not represent all the parts available - please scroll down for a complete list of items offered for this model.

Click on any part number highlighted in RED to view specific details or to purchase online.
It is recommended that all parts be fit by a qualified gunsmith.

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Sig Sauer MCX Recoil Assembly Kit
Sig Sauer MCX Match Disconnector

Sig Sauer MCX Match Disconnector

$9.44

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Sig Sauer MCX Rattler M-Lok Handguard, 5" .300 Blackout, Suppressor Compatible, Black

Sig Sauer MCX Rattler M-Lok Handguard, 5" .300 Blackout, Suppressor Compatible, Black

$186.80

2
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5
out of 5
Would recommend this product.

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Sig Sauer MCX Bolt Carrier

Sig Sauer MCX Bolt Carrier

$241.56

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Sig Sauer MCX Piston (J04) Assembly for 16" Barrel, 5.56 NATO

Sig Sauer MCX Piston (J04) Assembly for 16" Barrel, 5.56 NATO

$192.72

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Sig Sauer MCX Rattler Cal-X Kit, 5.56 NATO 5.5" Barrel

Sig Sauer MCX Rattler Cal-X Kit, 5.56 NATO 5.5" Barrel

$649.95

1
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

Sig Sauer MCX Recoil Spring

Sig Sauer MCX Recoil Spring

$13.89

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Sig Sauer MCX Stock Adapter Kit

Sig Sauer MCX Stock Adapter Kit

$173.58

1
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5
out of 5
Would recommend this product.

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Sig Sauer MCX/MPX Folding Pivoting Contour Brace

Sig Sauer MCX/MPX Folding Pivoting Contour Brace

$193.38

2
Ratings Snapshot
5
out of 5
Would recommend this product.
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Amend2 AR-15 30 Round Magazine 5-Pack

Amend2 AR-15 30 Round Magazine 5-Pack

$59.95

2
Ratings Snapshot
5
out of 5
Would recommend this product.
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Lancer Systems L5 Advanced Warfighter 300 Blackout 20 Round Translucent Smoke Magazine, 5-Pack

Lancer Systems L5 Advanced Warfighter 300 Blackout 20 Round Translucent Smoke Magazine, 5-Pack

$94.49

1
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5
out of 5
Would recommend this product.

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Lancer Systems L5 Advanced Warfighter 300 Blackout 10 Round Translucent Smoke Magazine, 5-Pack

Lancer Systems L5 Advanced Warfighter 300 Blackout 10 Round Translucent Smoke Magazine, 5-Pack

$74.95

1
Ratings Snapshot
5
out of 5
Would recommend this product.

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