
TacFire BU-556-5 Pistol Upper Assembly 5.56x45mm NATO Caliber with 5″ Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carry Group
April 2, 2026
HK USP-T 9MM 4.86″ 15RD V1 DA/SA
April 2, 2026SPGFLD ECHLN 4.0FC 9MM GEAR PAC 15RD
$710.00
SPGFLD ECHLN 4.0FC 9MM GEAR PAC 15RD
37 in stock
Engineered to merge full-size capacity with a compact slide assembly, the Echelon 4.0FC pairs a 4-inch barrel with a full-length grip. At its core is Springfield’s Central Operating Group, providing a serialized foundation for modular performance. The revolutionary Variable Interface System enables direct-mount compatibility with a wide range of today’s leading optics. Fully ambidextrous and equipped with tritium/luminescent U-Dot sights, the 4.0FC delivers duty-grade capacity with fast handling in a balanced, do-it-all platform.
| UPC | 706397002862 |
|---|---|
| Manufacturer | Springfield Armory |
| Manufacturer Part Number | EC9409BFC-15-PAC |
| Action | Semi-Auto |
| Barrel Length | 4" |
| Caliber/Gauge | 9mm |
| Capacity | 15 |
| Length | 7.25'' |
| Magazine Included | 4 x 15-Round |
| Model | Echelon |
| Number of Magazines | 4 15 rd. |
| Product Type | Striker Fired |
| Shipping Weight | 4.2 |
| Sights | FS: Lum RS: Tact. Rack U-Dot |
| Slide Description | Optic Ready/Serrated |








