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 Piston (L01) Assembly for 16"Barrel, 300 Blackout

Sig Sauer MCX Piston (L01) Assembly for 16"Barrel, 300 Blackout

$192.72

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Sig Sauer MCX, MPX Folding Stock, Minimalist Plus, Black

Sig Sauer MCX, MPX Folding Stock, Minimalist Plus, Black

$192.72

3
Ratings Snapshot
5
out of 5
Would recommend this product.

Sold Out

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Magpul Gen M3 PMAG 5.56mm 30 Round Magazine, Black, 10 Pack

Magpul Gen M3 PMAG 5.56mm 30 Round Magazine, Black, 10 Pack

$145.00

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In Stock

Sig Sauer MCX Virtus Suppressor Compliant M-Lok Handguard, Rifle Length

Sig Sauer MCX Virtus Suppressor Compliant M-Lok Handguard, Rifle Length

$241.56

2
Ratings Snapshot
5
out of 5
Would recommend this product.
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Sig Sauer MCX Rattler Bolt Assembly, 300 Blackout, Tapered Lug

Sig Sauer MCX Rattler Bolt Assembly, 300 Blackout, Tapered Lug

$192.72

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

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

$19.99

9
Ratings Snapshot
4.889
out of 5
Would recommend this product.

In Stock

Sig Sauer X-Fold Stock Adapter Assembly

Sig Sauer X-Fold Stock Adapter Assembly

$125.40

2
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

Sig Sauer MPX/MCX Magazine Release Button

Sig Sauer MPX/MCX Magazine Release Button

$8.99

2
Ratings Snapshot
5
out of 5
Would recommend this product.

In Stock

Sig Sauer MCX Cam Pin

Sig Sauer MCX Cam Pin

$23.76

Not Yet Rated

In Stock

Sig Sauer MCX Barrel Screw Retaining Pin

Sig Sauer MCX Barrel Screw Retaining Pin

$8.58

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In Stock

Sig Sauer MCX Forward Assist Housing Screw

Sig Sauer MCX Forward Assist Housing Screw

$6.99

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In Stock

Sig Sauer MCX Bolt Body, 5.56NATO/300BLK

Sig Sauer MCX Bolt Body, 5.56NATO/300BLK

$144.54

Not Yet Rated

In Stock

Sig Sauer MCX Pivot Pin

Sig Sauer MCX Pivot Pin

$9.44

Not Yet Rated

In Stock

Sig Sauer MCX Auto Disconnector