Valken Battle Machine M4 SD Review
OptimusPrime
16 Dec 2015
The Valken Tactical Battle Machine AEGs are available at Airsoft Atlanta, and they take one M4 SD for a spin for this review... "We review the new Valken 'Battle Machine' M4 AEG - SD Series guns. Perfect for CQB with it's 320 FPS and integrated faux suppressor that actually amplifies its sound volume. Check it out here: