The Sindar is a suppressor-ready 9MM upper build kit designed for shooters who want a compact, lightweight platform optimized for subsonic ammunition and sound reduction. Built on a billet aluminum upper receiver with a nitride 4150 chrome moly barrel, this kit delivers the precision and durability needed for reliable 9MM performance without the bulk of a full-size rifle upper.
This upper is engineered specifically for suppressor use. The 1/2x36 threaded barrel accepts standard suppressor mounts without modification. The H-Bar profile barrel maintains consistent velocity and accuracy even when running subsonic loads, which is critical for suppressed shooting. The nitride finish protects the barrel during extended shooting sessions and suppressor use.
The Vertex upper receiver is machined from 6061-T6 billet aluminum and anodized for durability. Billet construction provides tighter tolerances and enhanced rigidity compared to forged alternatives. The enhanced design maximizes rail space and accessory compatibility while keeping overall weight minimal. Aircraft-grade aluminum handguard construction ensures consistent performance across extended use.
This upper is optimized for 9MM pistol caliber ammunition, which cycles reliably through the H-Bar profile and 1-10 twist rate. The 16-inch barrel length provides velocity gains over shorter carbines while remaining compact enough for close-quarters and home defense scenarios. Standard 9x19 ammunition feeds reliably through this platform.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify compatibility before use. Ensure secure mounting before operation. Use only in accordance with applicable laws. BCG and charging handle are not included.
Caliber: 9mm (9x19)
Barrel Length: 16-inch
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Nitride
Barrel Profile: H-Bar
Barrel Twist Rate: 1:10T
Thread Pitch: 1/2x36
Upper Receiver Material: 6061-T6 Billet Aluminum
Upper Receiver Finish: Anodized
Handguard Material: Aircraft-Grade Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Barrel Name: AR-15 9mm 16" HBar 4150 CMV Nitride 1-10T Barrel
Upper Receiver Name: "Vertex" Enhanced Pistol Caliber AR-15 Billet Upper Receiver
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