The Sport-4 kit is installed in place of the regular handguard of AK and rifles based on AK with a long barrel (415 mm).

It has Basis rails on all sides for installation of additional accessories directly on the handguard, including:

• Side Picatinny rails: B-2 (45 mm), B-2U (75 mm), B-2L (34 mm), B-2M (15 mm)
• A-1L and A-2L slingmounts
• RL-1 hand stoppers
• Grips: RK-0L, RK-1L, RK-2L, RK-4L, RK-6L
• NPN-2 Basis rail covers
• FP-3 wire holders
• Tactical switches from the "D" line

Compatible weapon models:

• AKM, AKMS, AK-74, AK-74M, AK-101, AK-103
• Saiga MK 223 Rem, Saiga MK 7.62 isp. 30, Saiga MK 5.45 isp. 30
• TG-2, Saiga 308 Win v.61
• Vepr-K (VPO-133), Vepr-KM (VPO-136), VPO-209, AK-366-Lancaster

Note: The "Sport-4" kit is incompatible with AK models and civil rifles with a short barrel length (314-350 mm). For these models, use the "Sport-1" kit.

All products in the kit are all-milled with a black or desert color coating.

Specifications:

Material: D16T aluminum alloy

Weight: 336 ± 10 g

Product length: 295 mm

Operating ambient temperature range: -50 to +50°C

Warranty period of storage and operation: 60 months

Advantages during operation:

• Strength
• Improves cooling of the gun barrel in the area from the receiver to the upper handguard
• Creates the possibility of mounting additional equipment
• Minimum weight and size characteristics

In the kit:

To install the "Sport-4" kit on the weapon:

1. Perform an incomplete disassembly of the weapon and remove the regular handguard and upper handguard.
2. Install the B-10L handguard rail:
   • Place it in the position of the regular handguard.
   • Use a hammer and spacer to secure the handguard retainer. Do not hit the handguard directly. Do not file the rail.
3. Install the B-31LV upper handguard rail.
4. Install the DL-2 gen.2.0 additional attachment rail.
5. If additional rigidity is needed, connect the B-10L handguard and DL-2 gen.2.0 rail using the side bar included in the kit.
6. Install the Leader hand stopper from the bottom, connecting B-10L and DL-2 with it.
7. Install the Leader hook as shown in the instructions. If the fit is tight, use a hammer and spacer.

Detailed information about each rail, including operational benefits and technical characteristics, can be found in their respective manuals.

Note: The rigidity of the handguard and rails affects the accuracy of a shot.

The manufacturer reserves the right to make changes to the product design or configuration without prior notice, provided these changes do not worsen the technical characteristics or consumer properties of the product and are in line with the aim of improving its design or production technology.