Evolution X Defense XK9 9mm Upper Receiver Stripped

Description

XK9 Pistol Caliber Billet Upper with LRBHO (Last Round Bolt Hold Open)

  Model: XK9 Upper

Caliber: 9mm

Weight: 8.96 oz

Measurements:  7.662″ x 1.375″ x 2.314″

 Other Specifications and Features of the Billet XK9

• Machined from 7075 T6 aircraft grade billet aluminum
• Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
• Compatible with all standard AR-15 / AR-9 components and most aftermarket parts
• Manufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerances
• Designed to match lines with Evolution X Defense XK9 Lower
• Contains integrated Last Round Bolt Hold Open (LRBHO) technology (PATENT PENDING) that reliably holds the bolt open when magazine is empty
• LRBHO feature is designed for lowers that accept Glock style magazines
• **NOTE — This upper is not machined for a gas tube as it is intended for blowback gas systems only