Set "Joker-1" (set "A") - Zenitco

The kit is designed to be mounted on AR-15 based carbines. Consists of a forend and additional accessories. Forend length - 225 mm (8.85 ").
Forms a Picatinny rail on top and guides Base from three sides. Guide Base allows you to install additional equipment directly on the fore-end, in particular: brackets B-2 (45mm), B-2L (34 mm), B-2M (15 mm), B-2U (75 mm), forming Picatinny rails for additional equipment; swivels A-1L or A-2L; stops RL-1; front handles RK-0L, RK- 1L, RK-2L, RK-4L, RK-6L; overlays for the guide rail Basis NPN-2; wire clamps FP-3; remote buttons of the D series.

Scope of delivery :

Upper bracket B-71	1 pc.
Lower bracket B-81	1 pc.
Base for mounting brackets "Joker" (barrel nut) titanium BN-1	1 pc.
Screw М5х7	4 pcs.
Antabka A-2L	1 pc.
Stop RL-1	1 pc.
Bracket B-2L	1 pc.
Adjustable gas block RGB-2 titanium 0.750 "(with fixing pin)	1 pc .
Device for positioning the gas block RSB-2	1 pc.
Key "Joker"	1 pc.
Low profile overlay NPN-2	6 pcs.
Tube (packing)	1 pc.
Operation manual	1 piece

Dimensions :
Upper bracket B-71: (187x39x38) ± 5 mm .;
Lower bracket B-81: (228x41x51) ± 5 mm .;
Joker brackets mounting base (barrel nut ) titanium BN-1: (53x35) ± 5mm .;
Adjustable gas block RGB-2 titanium 0.750 ": (40x32x22) ± 5 mm.

Weight :
Upper bracket B-71: 79 ± 3 g;
Bottom bracket B-81: 119 ± 3 g;
The basis for mounting brackets "Joker" (barrel nut) titanium BN-1: 62 ± 3 g .;
Regulated gas block RGB-2 titanium 0.750 ": 30 ± 3 g.

To install the Joker kit it is necessary :

1. Dismantle the muzzle device, standard forend, gas block, barrel nut from the carbine.
2. Unscrew the base for fastening the Joker brackets (barrel nut) BN-1: divide into fastening and locking nuts. Tighten the fixing nut on the carabiner.
3. Install the B-81 lower bracket.
4. Install the fixing nut. Tighten it with the Joker wrench.
5. Install the adjustable gas block RGB-2. To do this:
   - Install a gas pipe on the RSL-2 (compatible only with straight pipes);
   - Put the RSL-2 on the barrel;
   - Position the RSL-2 on the barrel so that the gas outlet coincides with the gas inlet on the RSL-2. To do this, put the device for positioning the gas block on the lower bracket of the B-81 as on runners, so that the RSL-2 will enter it. After that, tighten the two screws on the RGB-2.
   - Remove the device for positioning the gas block.
6. Install the upper bracket B-71 on the lower one and slide it so that it sits in the grooves.
7. Using six screws, fix the upper bracket B-71 to the lower bracket B-81.
8. Install the A-2L swivel, stop RL-1, bracket B-2U in convenient places, if necessary.
9. Install pads on the guide rail Base NPN-2, if necessary, in convenient places.

Maintenance of carbines based on AR-15, including tuning, is more convenient to carry out using the product " Key # 1 "for servicing AR-15 based carbines (not included in the package).

The warranty period of the product is 60 months.