VIDEO: EMF100 MG100 MCS100 Air Through Buttstock With Milspec Handguard Upgrade Options #MCS
Gain the advantage of running the air through the rear of your marker rather than through the traditional ASA!
Body: https://mcsus.com/products/mcs100-m4-ar15-body-kit
Air Kit: https://mcsus.com/products/emf100-mg100-mcs100-complete-flexi-air-kit
