Holosun HS403B Red Dot Sight Sniper Rifle Upgrades Magazine Capacity: 300rd Hi-Capacity M4

Magazine Capacity: 300rd Hi-Capacity M4 Magazine and 1200 Round Box Magazine

-Shim the bevel

Barrel Threading: 14mm CCW

Quick aim bright dot front and rear sights

Holosun HS403B Red Dot Sight Sniper Rifle Upgrades Magazine Capacity: 300rd Hi-Capacity M4Not available for US customers. If you place an order containing any Holosun items to be shipped to the US, it will be cancelled and a 5% cancellation fee applied. OVERVIEW The 403B is a small compact micro red dot optic. Employing Holosuns LED technology, the lifetime for one CR2032 battery can be up to 5 years. This optic features our Shake Awake technology that powers the optic on with slight movement of the 403B. It may be installed on various