Yankee Hill Machine Co Barrel Shim Set 5/8" ID – Muzzle Device Timing Tool

The Yankee Hill Machine Co Barrel Shim Set provides precise timing and alignment for muzzle devices on barrels with 5/8" outer diameter threads. This shim set allows shooters to properly index muzzle brakes, flash hiders, and compensators without over-torquing or under-torquing the device, ensuring both secure mounting and correct orientation. Essential for installations where a crush washer won't provide adequate timing control or where precise alignment is critical for device function.

The set includes multiple shim thicknesses to achieve exact timing in fine increments. Stack shims as needed to align your muzzle device's ports or slots to the desired position, then torque to manufacturer specifications. Compatible with any threaded barrel using a 5/8" ID muzzle device thread pitch (commonly 5/8"-24 on .308/7.62 platforms). Stainless steel construction resists corrosion and maintains dimensional stability under heat and torque.

• Type: Barrel shim set for muzzle device timing
• Inner Diameter: 5/8"
• Material: Stainless steel
• Compatible Thread Pitch: 5/8"-24 and other 5/8" muzzle threads
• Common Applications: .308 Win, 7.62 NATO, 6.5 Creedmoor barrels