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  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan
  • UAR 501 Assault Rifle Replica - Tan

UAR 501 Assault Rifle Replica - Tan

  • Material: Polymer + Metal
  • Length: 645 mm
  • Weight: 2370 g
  • Colour: Tan
  • Muzzle Velocity: ~350 FPS
  • Manufacturer: APS
  • Product code: APS-01-004238
141,03 €
141,03 €
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Product description

UAR 501 Assault Rifle Replica - Tan

UAR 501 assault rifle replica by APS is an innovative construction equipped with a special hybrid gearbox called "APS Hybrid Gearbox". The abbreviation UAR stands for Urban Assault Rifle, that is a model designed with MOUT (urban combat) and CQB (close quarter combat) character scenarios in mind. Compact design and high manoeuvrability of the rifle were achieved due to its bull-pup construction. The insides contain and efficient, 385 mm outer barrel while the full length of the replica is barely 645 mm.

Practically the entire receiver was made from reinforced polymer. Thick stock pad was made from rubber. The replica features a long, top, RIS 22 mm mounting rail as well as three handguard rails. This allows to mount a wide array of additional attachments on the replica, starting with optical sights, through grips and tactical lighting and ending up with laser sights. 

The replica is incredibly functional - it features three magazine release buttons: one at the magwell and two near the pistol grip - they can be used with an index finger. The fire mode selector is double-sided and the charging handle can also be operated from both sides, which allows for easy operation to both left- and right-handed users. Once the charging handle has been pulled back, the user can access the Hop-Up chamber. The bolt-catch release button is located at the top of the stock.

The battery is stored inside the stock, under the stock pad. The pistol grip is hollow and there is room inside of it for 2 spare 123A batteries. The replica comes with two Hi-Cap magazines with a capacity of up to 190 BBs.

The new V.3 “APS Hybrid” gearbox constitutes the heart of UAR 501 replica. Designed and manufactured in an innovative and most user-friendly way, according to comparative tests conducted by manufacturer it is 33% more effective when it comes to energy consumption than a standard system. It is equipped with a Fast Spring Release system that allows the user to change the muzzle velocity of the replica without having to open up the gearbox. The set includes 2 main springs: one allows to achieve a muzzle velocity of ~320 FPS, the other ~350 FPS.

Reinforced gears were mounted on 7mm, metal bearings. The electric system consists of a silver-plated, low-resistance wiring that provides stable operation of the circuit, while the replica’s motor has a metal core. The cylinder and semi-precision internal barrel with a diameter of 6.05 mm were made from stainless steel

A reasonable for an assault rifle replica muzzle velocity of ~350 FPS  together with an optimal internal barrel length and a decreased diameter make this replica ideal for assault operations and medium- and close-ranged combat with high efficiency and focus.

The set includes:

- replica
- 2 magazines
- additional main spring
- cleaning rod
- manual

Magazine compatibility chart

NiMH, Li-Po and Li-Ion batteries charging tips:

Replika karabinka UAR 501
Velocity [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

Gearbox version

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.

Modified v2 Gearbox
Type of fire
Single, auto
Diameter of bearings in GB [mm]
Length [mm]
Inner barrel length [mm]
Weight [g]
Magazine type
Hi-Cap magazine
Magazine capacity [pcs]

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).

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.

Battery included

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.

Quick Spring Change System
Reviews of our customers
Number of reviews issued: 1
Click a rating to filter reviews
Opinion not confirmed by purchase
Below are my opinions after refitting the rifle and my first game with this beauty: Pros: Great weight balancing due to the back mounted gearbox Relatively light Easy to move around with it, doesn't hinder movement After general refit it has decent accuracy Easy disassembly Cons: The cilinder was shorter than it should have been, it needed an immediate replacement. Upper front battery containment had no wiring, needed to lead the wires from the back of the rifle. The weapon fire mode selector is a bit tricky Some may say the gearbox is too close to the shooters ear and is too loud. (Personally love it) Although it's said that it gets along well with M4/M16 magazines, after trying 3-4 aforementioned types, it still gets along only with the factory shipped magazines (without modifying the other magazines)
Richard, Budapest
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