Matador Arms MAT-9K AR-9 9mm 5in Roller Delayed Upper Receiver

Matador Arms MAT-9K AR-9 9mm 5in Roller Delayed Upper Receiver

Overview

• Roller delayed buffer-less upper with side charging and non-reciprocating operation
• Patent-pending EZTS Easy Take-down System; no tools required for maintenance
• Machined for maximum weight reduction, slim profile; compatible with bolt catches and lower receivers
• Features a tapered multi-material 4-piece trunnion system for accuracy and durability
• Compatible with AR-9 lower receivers in double-stack magazine configurations (Glock, Sig Sauer, Colt Stick Magazines, HK MP5, CZ Evo Scorpion); with AR-15 lowers, Mag-X magazine conversion or Endomag is required
• Roller Delayed system reduces recoil, lightens the upper, and increases reliability; no buffer tubes needed
• Non-reciprocating ambidextrous charging handle
• 4140 nitrided bolt and action parts; 6061-T6 aluminum upper; 4150 lightweight nitrided barrel
• NATO 1913 top rail; M-LOK handguard with at least 1 slot per side and bottom
• Compatible with LRBHO (Last Round Bolt Hold Open) lower receivers
• Ready to run with a suppressor out of the box

Specifications (from product page)

• Caliber: 9mm Luger
• Barrel Length: 5 in
• Barrel Profile: Tactical Lightweight
• Barrel Twist Rate: 1-10
• Threads per Inch: 1/2x28
• Muzzle Device: Thread Protector
• Finish: Anodized
• Fabric/Material: 6061-T6 Aluminum
• Handguard Length: 13 in
• Gun Rail: M-LOK
• Gun Make: AR Platform
• Gun Model: AR-9
• Barrel Material: 4150 CMV Steel

Package Contents

• Matador Arms MAT-9K AR-9 9mm 5in Roller Delayed Upper Receiver

Notes

• Compatible with AR-9 lowers; AR-15 lowers require Mag-X or Endomag magazine conversion for compatibility