Matrix WA gbb m4. Only had for a few months... was planning on fielding it, but covid has prevented that greatly. Among that, it’s just not for me. Nothing is wrong with it. Comes with a king arms mag and the oem (leaks). Peq, sling, and muzzle device will not be included with purchase. Asking $165 obo; local to socal only please (Temecula Murrieta is where im near)