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0940 Pistol Caliber Upper Receiver
The 0940 upper is a dedicated AR-15 pistol caliber upper receiver assembly with an appropriately sized ejection port window. It is compatible with 9mm, .40 S&W, .357 SIG, 45acp and 10mm.
- Compatible with 9mm, 40 S&W, 357 SIG, 45acp and 10mm
- Machined from 7075-T6 billet aluminum with a matte black hard-coat anodized finish
- Slick side upper receiver with pistol caliber sized ejection port and no forward assist or dust cover door
- Works with any mil-spec lower receiver
- Upper weight: 6.5 oz