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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Lancer Systems L5 Advanced Warfighter Magazine, 10 Round 5.56mm/.223cal, Opaque Black

Lancer Systems L5 Advanced Warfighter Magazine, 10 Round 5.56mm/.223cal, Opaque Black

$16.09

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

In Stock

Lancer Systems L5 Advanced Warfighter Magazine, 20 Round 5.56mm/.223cal, Translucent Smoke

Lancer Systems L5 Advanced Warfighter Magazine, 20 Round 5.56mm/.223cal, Translucent Smoke

$18.99

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

In Stock

Lancer Systems L5 Advanced Warfighter Magazine, 30 Round 5.56mm/.223cal, Opaque Black

Lancer Systems L5 Advanced Warfighter Magazine, 30 Round 5.56mm/.223cal, Opaque Black

$16.99

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

In Stock

Lancer Systems L5 Advanced Warfighter Magazine, 30 Round 5.56mm/.223cal, Translucent Clear

Lancer Systems L5 Advanced Warfighter Magazine, 30 Round 5.56mm/.223cal, Translucent Clear

$21.49

1
Ratings Snapshot
4
out of 5
Would recommend this product.

In Stock

Midwest Industries Sig Sauer Rattler Handguard, M-LOK, 5.25" Length

Midwest Industries Sig Sauer Rattler Handguard, M-LOK, 5.25" Length

$162.95

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

Sold Out

Notify Me When Available

Midwest Industries Sig Sauer Rattler Handguard, M-LOK, 10" Length Suppressor Compatible

Midwest Industries Sig Sauer Rattler Handguard, M-LOK, 10" Length Suppressor Compatible

$188.95

4
Ratings Snapshot
5
out of 5
Would recommend this product.

Sold Out

Notify Me When Available

Midwest Industries Sig Sauer MCX Virtus Handguard, M-LOK

Midwest Industries Sig Sauer MCX Virtus Handguard, M-LOK

$188.95

4
Ratings Snapshot
5
out of 5
Would recommend this product.
View Available Options
Midwest Industries Sig Sauer MCX Virtus Handguard, M-LOK, Suppressor Compatible

Midwest Industries Sig Sauer MCX Virtus Handguard, M-LOK, Suppressor Compatible

$188.95

3
Ratings Snapshot
4.667
out of 5
Would recommend this product.
View Available Options
Sig Sauer MCX Piston (F02) Assembly for 5.5"Barrel, 300 Blackout

Sig Sauer MCX Piston (F02) Assembly for 5.5"Barrel, 300 Blackout

$192.72

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

In Stock

Sig Sauer MCX Piston (F01) Assembly for 6.75"Barrel, 300 Blackout

Sig Sauer MCX Piston (F01) Assembly for 6.75"Barrel, 300 Blackout

$279.82

Not Yet Rated

In Stock

Sig Sauer MCX Piston (F02) Assembly for 9" Barrel, 300 Blackout

Sig Sauer MCX Piston (F02) Assembly for 9" Barrel, 300 Blackout

$192.72

Not Yet Rated

In Stock

Sig Sauer MCX Piston (J03) Assembly for 14.5"Barrel, 5.56 NATO

Sig Sauer MCX Piston (J03) Assembly for 14.5"Barrel, 5.56 NATO

$192.72

Not Yet Rated

In Stock