Brand new, price includes shipping. PayPal only, ships via usps priority, not interested in trade offers. Maple Leaf Whisper barrel extension, size M (medium type). Comes with 14mm CCW, 14mm CW, and 16mm CW thread adapters. Extremely lightweight aluminum construction, with stabilizing baffle inside (great for foaming). These will fit inside almost any handguard out there. Thanks in advance!