RU64337U1 - SOURCE FOR JUICES - Google Patents

Abstract

The utility model relates to firearms and can be used instead of a standard fore-end for mounting on Saiga-410K self-loading hunting carbines, similar self-loading carbines and some other variants thereof. The proposed forend model allows you to install various nozzles on the weapon - additional devices that increase the effectiveness of firing, ease of use and maintenance of weapons - bipods, handles of various types, laser target indicators, tactical lights. The technical result includes improving the operational characteristics of the weapon and expanding its functionality by changing its design. The technical result is achieved due to the fact that the forend model for the RNC contains, besides fastening with screws and nuts on the outer side parts, two universal Picatinny rails that can be fitted with additional nozzles — a laser pointer, a flashlight, and another removable universal bar “ "Picatinny rail" mounted on screws with nuts with the possibility of removal, in the lower central part of the fore-end for mounting other nozzles of the handle, bipod, etc. When the central Picatinny rail is removed for the combat variant th weapon can be mounted grenade launcher. In addition, two narrow longitudinal grooves are made on each of the two upper edges of the forend for ventilation and heat removal from the receiver heating zone, a metal heat reflector is attached inside the forend, a metal embedded insulating bracket in the front part, and an ergonomic one in the back of the forearm expansion.

The forearm is mounted on the weapon by means of the rear protrusion and the front bracket, which in their dimensions are made in accordance with the response standard parts on the weapon. Parts for the forend are made of impact-resistant polyamide "Armamide" and steel.

Description

The utility model relates to the field of small arms and can be used instead of a standard fore-end for mounting on Saiga-410K self-loading hunting carbines and similar self-loading carbines and some other variants thereof.

The proposed fore-end model allows you to install various nozzles on the weapon — additional devices that increase the efficiency of firing, ease of use and maintenance of weapons — bipods, handles of various types, laser target designators, tactical lights.

Known forearm staff for the Saiga-410K carbine, version "01", "02 made of wood or plastic, AK-type appearance.

(Catalog of Concern IZHMASH OJSC, p. 9, Russia, Udmurt Republic, Izhevsk, 2005)

However, the design of this forend does not allow installing additional equipment on the carbine — a handle, a bipod, a tactical flashlight, a target designator, etc., since there are no devices for this on the forearm. Hence the narrowness of the functionality of the weapon when shooting lying down, from the shoulder, at night.

Known forearm for Kalashnikov assault rifle and weapons made on its base, taken as a prototype, having longitudinal stiffeners and cooling ribs on the outer lateral surfaces, three tides in the central and lateral parts of the outer surface, and the central tide is perforated with blind holes and has a guide copying the guide rail of the Picatinny rail and used to fasten the folding handle and the base of the bipod, and the lateral tides have through holes for attaching the Picatinny rail with the installation on one laser Go designator, and on the other - a flashlight. (Patent RU No. 47507 MKI: F 41 C 23/00 date of publication. 08.27.2005)

The disadvantages of this forend are:

poor heat removal from the attachment point of the gas chamber with the forearm and, as a result, increased heating of the latter, which leads to inconvenience when holding the carbine with your hands on the forearm during firing. Also, in the absence of any additional equipment, such as a bipod, handle, or other shooter, on the lower part of the fore-end, it feels inconvenient when holding the weapon by the fore-end, because in the lower part there is a fixed Picatinny rail, with grooves and protrusions. In addition, the fixed Picatinny rail on the forearm prevents the grenade launcher from being installed as a military weapon. These factors lead to a deterioration in the operational characteristics of weapons.

The inventive utility model is aimed at improving the operational characteristics of the weapon and expanding its functionality by changing the design of the forearm.

The technical result is achieved due to the fact that the forend for the RNS contains, in addition to two fastening screws on the outer side parts, two universal Picatinny rails, on which additional nozzles are installed - unified equipment: a laser target indicator, a flashlight, another one mounted on

screws with removable nuts, the universal Picatinny rail in the lower central part of the fore-end for installing other additional equipment on it - handles, bipods, etc. When the Picatinny rail is removed, a grenade launcher can be mounted on the version of the military weapon.

On the upper part of the forend at the edges adjacent to the receiver of the carbine, two narrow longitudinal grooves are made on each side, which, when joined with the ventilation grooves on the receiver, form ventilation windows for removing heat from the receiver. In addition, in the inner cavity of the forearm is a reflector with holes that improve the quality and speed of ventilation inside. On the muzzle side, the fore-end has a fixed metal bracket for attaching to the weapon, which also serves as an insulator for the plastic fore-end from heated parts of the weapon and is intended for a more balanced distribution of heat inside the fore-end, which in general allows to increase its service life. Thanks to this design, the fore-end temperature when shooting is lower than the prototype by 35 ° -45 ° C, which leads to more comfortable conditions when operating the weapon. In the back of the fore-end, an extension in the form of a funnel is made from below, which makes the model more ergonomic and serves as a convenient stop for the shooter's hand.

The company conducted tests of prototypes of the forearm model, which passed with a positive result.

The inventive model is presented in the following drawings:

figure 1 is a General view;

figure 2 is a top view;

figure 3 is a side view with the strips removed;

4 is a front view;

figure 5 - installation of the forearm on the weapon.

Handguard for RNS (Figs. 1, 2, 3) is made of impact-resistant Armamide polyamide and steel, has a U-shaped cross-section, with an ergonomic extension 1 at the rear. Two narrow longitudinal grooves 2 are made on the upper edges of the forend 2 sides for heat dissipation. On the outer side surfaces (Fig.3,4) are longitudinal stiffeners and cooling 3, as well as three tides 4, 5, 6 - on the lateral and lower outer surfaces, in which through holes 7, 8 are made for installing screws with nuts for fastenings of universal guide rails "Picatinny rail" 9, 10 and reflector 14 (Fig.1, 2). The metal bracket 15 is made mortgage and is located in the front of the muzzle of the forearm, it also serves to attach the forearm to the regular ring of the receiver of the weapon.

Handguard for RNS is used as follows.

On the lateral tides 4 and 5 (Figs. 2, 3, 4) with screws 11 with nuts 12, two lateral Picatinny rails 9 are attached, the same screws and nuts are attached to the reflector 14, and the central lower tide is also mounted on screws with nuts lower guide bar 10 (figure 1). The forearm is mounted on the weapon by means of the rear protrusion 13 and the front bracket 15 (Figs. 3, 5), which are dimensioned in accordance with the mating parts on the weapon.

After assembling the weapon on the forend, there are three Picatinny rails for mounting standardized nozzles on them.

The lower central guide bar “Picatinny” 10 is made of increased length compared with the side bars for the possible installation of one or more nozzles on it: bipod for ease of shooting lying down, handles for ease of shooting from the shoulder, flashlight, etc.

A lantern and a laser designator can be mounted on the side guide rails 9. With the Picatinny rail lower, the grenade launcher can be mounted on the weapon.

The undoubted advantage of the proposed utility model of the forend is its versatility, improving the operational characteristics of the weapon with its use, simplicity and ease of use and maintenance, especially when disassembling and assembling.

Claims (1)

Handguard for JUICE and weapons made on its basis, having on the outer side surfaces longitudinal ribs of cooling and cooling, three tides, one is located in the central part, and the other two on the side surfaces, and the central tide has a guide that copies the guide of the Picatinny rail ”And which serves for fastening the folding handle and the base of the bipod, and the lateral tides have through holes for fastening the Picatinny rails with the installation of a laser pointer on one laser and a flashlight on the other, characterized in that The central flange on the central tide is removable, fastened with screws and nuts, with the possibility of installing one or more nozzles on it - a handle, a bipod, a lamp, and two narrow grooves for ventilation and heat removal from the heating zone are made on each of the two upper edges of the fore-end the receiver, inside the forearm is attached a metal heat reflector, in the front part - a metal embedded insulating bracket, and in the back of the forearm ergonomic expansion is performed.