Sig Sauer CALXMPX4B9G2 9mm 4.5" MPX Gen 2 Barrel Kit Black Nitride Steel
Shop Sig Sauer ProductsSig Sauer CALXMPX4B9G2 MPX Caliber Exchange Kit - 9mm Luger, 4.50" Black Nitride Barrel
The Sig Sauer CALXMPX4B9G2 MPX Caliber Exchange Kit features a 4.5" barrel designed for the MPX Gen II platform. This genuine factory replacement part allows for easy caliber conversion while ensuring optimal fit and performance. Crafted from durable carbon steel with a black nitride finish, this barrel assembly includes a flash hider for enhanced functionality.
Specs:
Technical Specifications
| Barrel Length | 4.50" |
|---|---|
| Finish | Nitride |
| Weight | 1.54 lbs |
| Trigger Type | Carbon Steel |
| Manufacturer | Sig Sauer |
| Model | CALXMPX4B9G2 |
| SKU | S497026 |
| UPC | 798681555062 |
| Availability | In Stock |
Customer Reviews
No reviews yet. Be the first to review this product!
Shipping & Returns
Shipping Information
- Orders typically process within 1-2 business days
- Ships via major carriers with tracking
- Tracking information provided for all orders
- Shipping costs calculated at checkout based on weight and destination
Return Policy
- 30-day return policy on accessories and non-firearms
- Items must be unused and in original packaging
- Contact us for return authorization before shipping items back
- Original shipping costs are non-refundable
Questions?
Contact us at 407-347-9840 or submit a question for assistance with shipping or returns.
What is MAP Pricing?
MAP stands for Minimum Advertised Price. It's a policy set by manufacturers that limits how low retailers can advertise their prices.
The good news? We can often sell below MAP - we just can't show that price publicly. When you request a price by email or add to cart, you'll see our actual (often lower) price.
This isn't a trick - it's how we stay compliant while still offering you the best deals possible.








