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 X-Fold Adapter Hinge Pivot Pin

Sig Sauer X-Fold Adapter Hinge Pivot Pin

$21.35

2
Ratings Snapshot
4.5
out of 5
Would recommend this product.

In Stock

Sig Sauer X-Fold Adapter Stock Mount Clamp

Sig Sauer X-Fold Adapter Stock Mount Clamp

$9.44

Not Yet Rated

In Stock

Sig Sauer Tapered Barrel Muzzle Adapter, 90 Degree Shoulder, 7.62mm

Sig Sauer Tapered Barrel Muzzle Adapter, 90 Degree Shoulder, 7.62mm

$10.59

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

In Stock

Sig Sauer Tapered Barrel Muzzle Adapter, 90 Degree Shoulder, 5.56mm

Sig Sauer Tapered Barrel Muzzle Adapter, 90 Degree Shoulder, 5.56mm

$10.59

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

In Stock

Sig Sauer 1913 Interface Hinge Spring

Sig Sauer 1913 Interface Hinge Spring

$6.99

3
Ratings Snapshot
4.667
out of 5
Would recommend this product.

In Stock

Sig Sauer 1913 Interface Hinge Pin Stop

Sig Sauer 1913 Interface Hinge Pin Stop

$6.60

2
Ratings Snapshot
4.5
out of 5
Would recommend this product.

In Stock

Sig Sauer MCX Gas Valve Lever

Sig Sauer MCX Gas Valve Lever

$32.05

Not Yet Rated

In Stock

Magpul Gen M3 PMAG .300 Blackout, 20 Round Magazine

Magpul Gen M3 PMAG .300 Blackout, 20 Round Magazine

$15.15

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

In Stock

Midwest Industries Side Folding Extruded Stock

Midwest Industries Side Folding Extruded Stock

$188.95

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

Sold Out

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Sig Sauer MPX Folding Stock Assembly, Low Profile Tube

Sig Sauer MPX Folding Stock Assembly, Low Profile Tube

$193.38

Not Yet Rated

In Stock

Sig Sauer MCX Firing Pin Latch, Semi

Sig Sauer MCX Firing Pin Latch, Semi

$47.52

Not Yet Rated

In Stock