Bracket B-74 "Joker-4" - Zenitco

Brand: Zenitco
Product Code: ZNT-0165
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Short descriptio


Bracket B-74 "Joker-4" (hereinafter referred to as B-74) is installed in place of the upper standard forend of AR-15 carbines and has a Picatinny rail, which allows attaching additional equipment to the weapon. B-74 is... Read more...

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$313.91 $266.82

  • Availability: In Stock


Bracket B-74 "Joker-4" (hereinafter referred to as B-74) is installed in place of the upper standard forend of AR-15 carbines and has a Picatinny rail, which allows attaching additional equipment to the weapon.

B-74 is a solid-milled product made of alloy D16T with a black coating.

Benefits in operation:

  • Strength
  • Improves cooling weapon barrel
  • Creates the ability to mount additional equipment
  • Minimum weight and dimensions

Weight: 143 + 3g

Overall dimensions: (368х39х38) mm (length 36.8 cm (114.48 "))

Working range of ambient temperatures: from -50 ° С to + 50 ° С

Warranty period of storage and operation of the product: 60 months.


To install on the weapon, you must:
  1. Dismantle the muzzle device, standard forend, gas block, fastening nut.
  2. Tighten the fastening nut manufactured by Zenit LLC, removing from it pre-fixing nut.
  3. Install the B-84 lower bracket.
  4. Put on the fixing nut.
  5. Put on the adjustable gas block.
  6. Through the holes on the lower part of the B-84 lower bracket (having previously displaced it so that the holes on the bracket coincide with the fastening screws on the gas block) or by tilting the bottom bracket so that you can access the fixing screws, tighten the screws on the gas block, thereby fixing the adjustable gas block.
  7. Slide the bottom bracket firmly against the upper receiver so that the Picatinny rails form a single line .
  8. Using the wrench included in the kit, tighten the fixing nut, thereby firmly fixing the lower bracket on the carabiner.
  9. Place the upper bracket on the lower one and slide it so that it sits in grooves.
  10. Using four screws we fix the upper bracket B-74 on the lower bracket B-84.
  11. Fix the additional equipment in any convenient place for the shooter.

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