HERA Arms H7 Stock System .308 Howa OD. The stock system was constructed out of fiberglass-reinforced polymer has an aluminum V-block and an aluminum fore-stock. The H7 features M-LOK mountpoints for mounting various accessories and it's compatible with most tuning triggers and AICS magazines. Additionally the stock system comes with two spacers and a polymer cheek piece support. Specifications for HERA Arms H7 Stock System: Manufacturer: HERA Arms Condition: New Projectile Caliber: .308 Caliber Caliber: .308 Winchester Package Contents: HERA Arms H7 Stock System What firearm models does the manufacturer say HERA Arms H7 Stock System is compatible with? The manufacturer suggests that HERA Arms H7 Stock System is compatible with Howa 1500 Remington Model 700HERA Arms 26.15: H7 Stock System .308 Howa OD