Holosun HS407C X2 Red Dot Sight (2026) SP-DAVI-21 84 mm aluminum inner barrel

84 mm aluminum inner barrel * 1

since the piston is composed of these weights

Adds top-mounted Allen/hex key hop adjustment from the top of your AAP-01 or surface-mounted TDC click wheel adjustment using the included wheel and mini TDC turret

The click ball screw comes pre-installed

abrasion-resistant TPU with RF-welded seams for superior durability and elasticity

Holosun HS407C X2 Red Dot Sight (2026) SP-DAVI-21 84 mm aluminum inner barrelOverview Experience next level precision with the Holosun HS407C X2 Red Dot Sight (2026). Designed for speed, durability, and versatility, this optic is a top choice for competitive shooters and tactical enthusiasts alike. Featuring Holosuns proprietary Shake Awake technology, the HS407C X2 ensures maximum battery life by automatically powering on when movement is detected and shutting off after inactivity. Key Features Dual Illumination Modes: Choose