Tippmann BT Basic Training M4 Carbine RIS CQB Airsoft Gun Internal Marker Upgrades Fit all guns that come

Fit all guns that come with a t-slot rail system (Planet Eclipse

Ergonomic elbow pit cut out to reduce binding

Internal Air Lines - No external hose or tubes

Flip-up front and rear sights can be used as primary sights or as backups to aftermarket optics as well

closing dwell

Tippmann BT Basic Training M4 Carbine RIS CQB Airsoft Gun Internal Marker Upgrades Fit all guns that comeThe perfect Basic Training entry into Airsoft in a complete affordable package. BT M4 Carbine RIS offers an authentic look, lightweight construction and ergonomic design that sums up the best value choice for getting into the game of Airsoft. Features: Lightweight Construction Reinforced Polymer Body and Rail Flip up Front and Rear Sights Adjustable Stock Hi Cap 300 round Magazine 9. 6 Nimh Rechargeable Battery and Charger Included