
Sig Sauer 226RM9LEGIONR2 P226 9mm Luger 10+1 4.40″ Optic Ready/Serrated
November 13, 2025
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November 13, 2025Sig Sauer PMPX4B9 MPX K 9mm Luger Caliber with 4.50″ Barrel, 30+1 Capacity, Black Hard Coat Anodized Metal Finish, Folding Pivoting Contour Brace Stock & Black Polymer Grip Right Hand
$1,999.99
Sig Sauer PMPX4B9 MPX K 9mm Luger Caliber with 4.50″ Barrel, 30+1 Capacity, Black Hard Coat Anodized Metal Finish, Folding Pivoting Contour Brace Stock & Black Polymer Grip Right Hand
44 in stock
The MPX K offers a closed bolt gas piston system that is ultra reliable and durable. The MPX K is modular allowing for multiple handguard and barrel lengths and is ready to go for suppressor use. It features the SIG PCB folding brace which allows the K to fold into an ultra-compact size and be operable in the folded position. The K features an updated M-LOK handguard and Timney Trigger. Includes 35rd polymer magazine.
| UPC | 798681666744 |
|---|---|
| Manufacturer | Sig Sauer |
| Manufacturer Part Number | PMPX4B935 |
| Sights Type | NONE |
| Action | Semi-Auto |
| Number of Magazines | 1 |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| Barrel Length | 4.5000 |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| Caliber/Gauge | 9mm |
| Capacity | 35 |
| Length | 31.8000 |
| Model | MPX K |
| Product Type | AR |
| Barrel Finish | Black |
| Sights | Optic Ready |
| Units per Box | 1 |
| Rate of Twist | 1:10" |
| Thread Pattern | M13.5x1mm tpi |
| Package Height | 4.3 |
| Package Width | 12.5 |
| Shipping Weight | 7.75 |
| ATF Type | Pistol |
| Safety | Thumb |
| Magazine Included | 1 x 35-Round |


