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 Ambidextrous Charging Handle Assembly, Medium Latches
Sig Sauer MCX Handguard Link and Screws

Sig Sauer MCX Handguard Link and Screws

$27.72

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Sig Sauer MCX Handguard Link and Screws, Suppressor Compatible

Sig Sauer MCX Handguard Link and Screws, Suppressor Compatible

$27.78

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Sig Sauer MCX Forward Assist Spring

Sig Sauer MCX Forward Assist Spring

$6.60

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Sig Sauer MCX Extractor Spring, Heavy

Sig Sauer MCX Extractor Spring, Heavy

$6.99

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Sig Sauer MCX Gas Valve Stop Pin Retaining Pin

Sig Sauer MCX Gas Valve Stop Pin Retaining Pin

$6.60

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Sig Sauer MCX Firing Pin Retention Pin O-Ring, .070"x.241"OD

Sig Sauer MCX Firing Pin Retention Pin O-Ring, .070"x.241"OD

$6.99

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Sig Sauer MCX Forward Assist Pin, 3/32"x3/4"

Sig Sauer MCX Forward Assist Pin, 3/32"x3/4"

$6.60

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Sig Sauer MCX Trigger Return Spring

Sig Sauer MCX Trigger Return Spring

$9.44

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Sig Sauer MCX Gas Valve Detent Spring

Sig Sauer MCX Gas Valve Detent Spring

$6.99

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Sig Sauer MCX Firing Pin Lock Spring

Sig Sauer MCX Firing Pin Lock Spring

$10.56

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Sig Sauer MCX Trip Bar Retaining Pin, Auto Only

Sig Sauer MCX Trip Bar Retaining Pin, Auto Only

$6.99

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Sig Sauer MCX Spring Guide Plate

Sig Sauer MCX Spring Guide Plate

$57.42

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Sig Sauer MCX Ejection Port Cover Spring

Sig Sauer MCX Ejection Port Cover Spring

$6.60

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Sig Sauer MCX Cam Path Insert Screw

Sig Sauer MCX Cam Path Insert Screw

$6.99

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