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"Sport-4" kit

  • Description
  • Installation Instructions
  • Compatibility
"Sport-4" kit is installed in place of the regular handguard of AK and rifles based on AK with a long barrel (415 mm). Has Basis rails on three sides. Basis rail is designed for lightening the handguard and installation of additional accessories directly to the handguard: side Picatinny rails (B-2, B-2L, B-2U, B-2M); slingmounts (A-1L, A-2L); RL-1 hand stoppers; grips (RK-0L, RK-1L, RK-2L, RK-4L, KR-6L); NPN-2 Basis rail covers. 

Compatible weapon models: AKM, AKMS, AK-74, AK-74M, AK-101, AK-103, Saiga MK 223 Rem, Saiga MK 7.62 is.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 .

Incompatible with AK models and civil rifles based on it with a short barrel length (314-350mm)!!! The "Sport-1" kit is designed for them.

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

Material: D16T aluminum alloy

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

Advantages during operation:
  • strength
  • improves the 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
Weight: 280 ± 10 g

Warranty period of storage and operation with the date of commissioning: 60 months.

In the kit:

  • "B-31LV upper handguard rail" - 1 pc.
  • ''B-10L handguard'' rail - 1 pc.
  • ''DL-2 additional attachment'' rail - 1 pc.
  • Side bar (with 1 oval mount and 1 plate mount) - 1 pc.
  • Screws - 8 pcs.
  • Manual (B-31LV, B-10L, DL-2, Sport-4 kit) - 4 pcs.

To install the "Sport-4" kit on the weapon:
1. Perform an incomplete disassembly of the weapon and to remove a regular handguard and a regular upper handguard.
2. Install ''B-10L handguard" rail instead of the regular handguard. Use a hammer and a spacer. Hit the handguard retainer through a spacer. Do not hit the handguard. Do not file the rail.
3. Install ''B-31LV upper handguard'' rail.
4. Install ''DL-2 additional attachment'' rail.
5. If it is necessary to give additional rigidity to the structure, connect "B-10L handguard'' rail and ''DL-2 additional attachment'' rail by a side bar (in the kit).

Detailed information about each rail: about their advantages during operation, about technical characteristics can be found in the manuals for each bracket.


The rigidity of handguard and the rails from the kit determine the rigidity of aimint devices, which affects the accuracy of a shot. 



No video installation instructions...