BI-3981M

  • Velocity: 350 fps
  • Lenght: 712 / 794 mm
  • Weight: 3500 g

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BI-3981M
Fabricant :BOYI/DBOYS
Code de l'article :DBY-01-000127
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€184,89
184.89 / 1pièce
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DESCRIPTION COMPLÈTE
Name: BI-3981M
Manufacturer BOYI
Gun propulsion: electric - metal gearbox ver. 2
The replica is made of: ABS: buttstock, and RIS rails facings,
metal: body, external barrel, gas pipe imitation, RIS rails system, adjustable folding rear sight aperture, reload lever, Hop-Up chamber, sling swivel, magazine, and buttstock extension buffer tube.
Velocity (FPS): 350 fps
Magazine/Clip Capacity: 300 BB's (HI CAP magazine)
Gun lenght:
71,2-79,4 cm
Gun weight: 3500 g
 
The replica has also an adjustable Hop-Up, which can be reached by pulling back the reload lever. The reload lever opens ejection port cover, where the Hop-Up control is located.
In a gear box of this model there are 7mm bearings. The place for battery is in a buttstock (SF type). Thanks to it, we gain a better balance of the replica.
Additional information / Other information:
Fire modes: semi, auto
Hop-Up: Yes, regulated
Trigger lock: Yes
Guarantee
12 months

Set includes:
    BI-3981M
  • battery 8,4V 1100 mAh
  • battery charger 220-230V
  • metal HI CAP magazine
  • sling
  • tactical handle
Spécifications :
Nom:
BI-3981M
Producteur:
BOYI/DBOYS
Garantie:
12 mois
Puissance [FPS]:

It is the spped of bb, while its leaving the innerbarrel of replica. This speed is measured in FPS (Feet Per Second).

1 FPS = 0,3 m/s

1 J = 99 m/s

1 J = 326,7 FPS

350
Propulsion / Puissance:
Électrique
Version Gearbox:

Indications v2, v3, v6 does not mean the level of advance, but only shape of gearbox skeleton which was used and selected by the manufacturer depending on the capabilities of the body of the replica. For example, a models of the M4/M16 family, MP5, have a v2 gearbox, while the AK family have gearbox v3.

Gearbox v2
Modes de tir:
Semi, auto
Matière:
Métal, plastique
Longueur [mm]:

The length of the replca is measured between the two most distant points of each other. Different models have several of these values, because of its design allows to increase or decrease it length (eg.  folding stock or extended flash hider).

715 / 795
Longueur canon interne [mm]:
363
Poids [g]:

This is a value that includes the weight of the replica, magazine and other accessories that are include in set without a battery, charger, cleaning rod, etc., etc.

3500
Battery Voltage [V]:
9,6
Capacité de la batterie:

Battery capacity determines the time, which it accumulated enough energy to work gearbox. The greater  capacity, then replica will shoot longer.

1200
Batterie fournie:

NiCd rechargeable battery is characterized by high efficiency current-carrying capacity, but there are disruptive effect on memory. Should be unloaded and loaded in the full cycle, ie, it is recommended to fully discharge, and after unloading must charge the battery immediately without leaving it for a long time in a discharged state.
NiMH batteries have a higher self-discharge over time and shorten the life - on the other hand, they earn about 30% more capacity.

Ni-MH
Type de chargeur:
Hi-Cap
Capacité chargeur [pcs]:
300
Hop-Up:

Hop-Up system is used for overclocking bb during the shot (putting it in rotation), through which, it extends its flight path. Acting laws of physics make that bb lift up, while the gravitational force take it down. Appropriate adjustment of Hop-Up, will compensate for these two factors, which result in long and straight flight for longer distance and be greater focus shot (to improve accuracy).

Oui, réglable
Blow Back:

Blow back is a simulation system of the cocking lever - it imitates the work of it as the equivalent sharp. This system raises the realism and adds a lot more experience during shooting.

Sans
Avis des consommateurs
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