Beretta Rx4 rifle is a semi-automatic rifle, which is operated by air guidance. It adopts the automatic air guiding system (ARGO) patented by Bernali, which is a short-stroke double air guiding piston system and has been applied to Bernali M4 Super 90 shotgun. It consists of an air guide ring and two groups of short-stroke air guide pistons, which are located in the front bracket below the barrel. The rotating bolt has three protruding bamboo shoots. Because the stock contains recoil spring, Rx4 can't be replaced with a folding stock at will, and only a fixed stock or a partially retractable stock can be used. Rx4 rifle is equipped with an adjustable open sight, picatinny guide rail is installed on the front bracket, and guide rail can be installed on the top of the case. The barrel length is 16 inch and 12.5 inch.
Beretta Rx4 rifle is mainly suitable for law enforcement personnel such as family self-defense, actual shooting, security and police. Because of this positioning, the gun is only semi-automatic at present.
The empty gun weighs 7 pounds (3.18kg), and the total gun length (16 barrel) is extended by 37.1(942mm) and retracted by 35.3 (896mm).
The barrel length is 16, 12.5 (406 mm, 3 17 mm).
Magazine capacity 10, 20 rounds, 30 rounds