I have a very nice Vixen in .177 that has some extras. The stock has been replaced with a 3D printed one that is adjustable and has a built-in monopod. The barrel shroud has been replaced with a carbon fiber tensioned system with custom machined parts. The OEM gauge has been replaced with Sehkmet digital with CF cover. Also included are a UTG 360 bipod and Athlon ARES BTR 4.5x27x50 scope, mounts, DFL Tatsu moderator, and Huma fill probe. 2 mags and OEM stock is included. Asking $1000.00 shipped PayPal F&F. Great little sniper! Holds air forever and functions perfectly! Very accurate!