Army Armament R504 Hi-Capa GBB Pistol

Army Armament
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  • Full Metal construction
  • Combat Styled Hi-Capa
  • Suppressor height sights and thread adapter

If you would appreciate the large gas reservoir of a Hi-Capa, but shiny race pistols aren't your style, the R504 may be what you have been searching for. The R504 sports Hi-Capa parts compatibility and a large magazine, coupled with aggressive military styling, suppressor height sights, a pre-installed thread adapter, and a Red dot sight mount plate included in the box.

Full description

Frequently purchased with this pistol...

Description

The R504 Hi-Capa from Army Armament takes a diversion from the norm for Hi-Capa styling. This pistol is more combat focussed than other Hi-Capas, and as such foregoes the ports in the slide, enlarged controls and other sporty features in favour of an aggressively stippled pistol grip with trigger guard undercuts, snag-free low profile controls, and suppressor height sights. A thread adapter is pre-installed at the tip of the outer barrel, which provides a 14mm CCW male thread for mounting tracers, suppressors, or sound amplifiers, depending on your mission.

The slide, frame, and outer barrel of the R504 are made from robust alloy, giving that cold feel in the hand and a satisfying metal on metal noise as the pistol cycles. The front of the alloy frame provides a 20mm Picatinny pistol rail, which can be used to mount laser aiming modules, tactical flashlights, and other accessories. The pistol grip is made from polymer, as with many Hi-Capas sporting the modular lower frame design, and features aggressive stippling in an attractive rectangular pattern, both keeping the pistol firmly in the shooter's hand, and adding to the militant styling of this pistol. The trigger features weight-reducing ports and is a linear design with a very short reset and tactile press. At the bottom of the pistol grip, there is an extended magazine well installed, which is smaller and more discrete than most Hi-Capa magazine wells. This keeps the overall aesthetic of the mag well in line with the pistol's tactical appearance, whilst still providing an edge when it comes to fast reloads under pressure during a skirmish. The trigger guard features undercuts for the shooter's fingers, and ergonomic enhancement allowing a higher grip, making the recoil of the pistol easier to control. The magazine release can be found on the left side of the pistol grip, and is a low profile design ensuring the magazine does not get inadvertently released at a key moment. At the rear of the pistol grip we can find the extended beavertail grip safety, a feature the Hi-Capa inherited from the venerable 1911 pistol on which it was based. The grip safety is easy to depress, and provides that extra bit of security to ensure the pistol does not go off when you don't intend it to, a concern which has particular relevance to the Hi-Capa with its light, short and super-fast trigger action.

The manual safety of the R504 can be found at the rear of the frame and is mirrored on either side. This safety is very well placed, lying directly beneath the shooter's thumb when in a firing grip, for both left and right-handed shooters. When lowered to the firing position, the safety doubles as a "gas pedal", a device which provides the shooter with additional control over the pistol by pushing the thumb down onto the "pedal".

The slide of the R504 features stylish fluting to reduce weight, enhancing cycling speed without opening up ports in the slide through which dirt may enter the system. The sights provided on the R504 are raised suppressor height sights, with the front sight using a high vis white dot with anti-glare checkering, and the rear sight using black dots with the same anti-glare linear checkering, ensuring a clear sight picture in bright sunlight. The use of black dots for the rear sight is a very modern feature and prevents the shooter from becoming confused in the heat of combat and misaligning the sights. The slide of the R504 also includes a removable plate, just in front of the rear sight. This plate can be swapped with the one in the box, which will enable a Micro red dot sight to be mounted to the slide.

If you are looking for the famed Hi-Capa performance but you aren't cool with the looks of the typical Hi-Capa, the R504 may be something to consider. Bringing the race pistol to war, the R504 is well equipped to mount suppressors, tactical flashlights, a red dot sight, and any other accessories you can think of to give you the edge when the BBs hit the fan!

Features

  • Alloy slide and subframe
  • Stippled polymer pistol grip
  • Optics ready with included side plate
  • 20mm Picatinny rail on the frame
  • Includes thread adapter providing 14mm CCW male thread
  • Trigger guard undercuts for enhanced comfort
  • Raised suppressor height sights - Sneak and aim!
  • Fluted slide to reduce weight and increase cyclic rate
  • Beavertail Grip safety
  • Ambidextrous Manual safety
  • Enlarged Magazine well for fast reloads

Package Includes

  • Army Armament R504 Hi-Capa GBB Pistol
  • R504 GBB magazine
  • RDS mounting plate

Specification

General

Weapon Construction External
Weapon Type
Pistol
Over 18 Only Icon
Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
FPS Icon
FPS (Feet Per Second), using 0.20g BB
Approx. 270fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Yes
Screwdriver Icon
Pre-Built
Yes
Package
Included Items
  • Magazine
  • Red dot sight mount plate
Skill Level Icon
User Skill Level
Regular Player, Experienced Player,
Patrol Base - Warning Icon
Warnings
Lubrication is required

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 0.6kg
Weapon Length Collapsed
Length (Collapsed)
22cm
Weapon Length Extended
Length (Extended)
22cm

Construction

Colour Wheel Greyscale
Primary Colour
Black,
Half-Tan
Half-Tan
,
Two Tone Icon
Pre Two-Toned
No
Construction Icon
Construction
Alloy slide, outer barrel, magazine well extension and front frame, Polymer grip
Weapon Construction External
External Construction
Polymer
Alloy
Aluminium
Gearbox Icon
Internal Construction
Polymer
Alloy
Aluminium
Steel

Weapon Specific

Power Source Icon
Powered By
Green Gas
Blowback Icon
Blowback
Gas Blowback
Weapon Platform
Pistol, Hi-Capa,
Magazine Style Icon
Magazine Style
Pistol Magazine, Army R504,
Fire Select Icon
Fire Selector
PatrolBase | Fire Select Safe
Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Weapon Safety Features Icon
Safety Features
Trigger Lock, Grip Safety,
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Weapon Configuration
Standard
Weapon Scale Icon
Weapon Scale
1:1
Suggested BB Weight
0.25g

Hop-Up

Hop-Up Unit Icon
Hop-Up Unit
Yes
Hop-Up Unit Adjuster Icon
Hop-Up Adjuster
Gear
Hop-Up Unit Location Icon
Hop-Up Location
On underside of the outer barrel, accessible when the slide is removed

Furniture

Weapon Furniture Icon
Furniture
  • Ambidextrous Safety
  • 20mm Pistol Rail
  • High Profile Ironsights
  • Flared Magwell
  • Stippled Grip
  • 14mm CCW thread adapter
Rail System Icon
Rail System
20mm Pistol Mount
Sight Type Icon
Sight Type
Iron Sights , Open Iron Sight,

Barrel

Outer Barrel Length (in)
4.3''
Icon Thread Type
Outer Barrel Thread Type
Male
Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
14mm
Inner Barrel Diameter
6.08mm
Inner Barrel Length
100mm

Magazine Specific

Magazine Type
Low Capacity , Gas,
Magazine BB Capacity
Approx. 26 Rounds
Magazine BB Fill Method
Speed Loader
Magazine BB Fill Location
Top, Front,
Magazine Gas Fill Location
Bottom
Magazine Gas Type
Green Gas

Gas Gun Specific

Gas Can Icon
Gas Compatability
Green Gas
Gas Can Icon
Gas Recommendation
Green Gas

Pistol Specific

Construction Icon
Slide Material
Alloy
Icon Pistol Slide
Pistol Slide Type
Standard

Product Testing Data

Notepad Icon
Test Description
270 FPS +/- 10%
Notepad Icon
Tested Using
0.2g ASG BLASTER
Notepad Icon
Test Date
18/11/21

Related video

Army Armament R504 Hi-capa and Vaide Scrapper Subcompact LIVE

Further Information

Special Instructions

Due to the angle of the baseplate on the R504 the pistol is only compatible with R504 and R604 magazines. Hi-capa magazines likely will not work.

Size guide

Joule Charts

Special Instructions

These table can be used as a reference to see if the BB weight you are using will be over acceptable Joulage limits at some Airsoft Sites in the UK. To check if the weight can be used chrono your weapon using the BB you intend to use, and then compare it to the chart.

FPS, Power and Joule Limits can vary from site to site, so please get in touch with where you're going to play with in advance to avoid disappointment.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, with a 350fps limit for Automatic Replicas, 400fps for Semi-Automatic Replicas, and 500fps for Bolt Action Replicas.

Tap the tabs below to open the relevant chart for your replica.

Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, and is the equivalent of 350fps, using 0.20g BB resulting in an upper limit of 1.14j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
325 0.98 1.23 1.37 1.47 1.57 1.77 1.96 2.11 2.21 2.45
328 1.00 1.25 1.40 1.50 1.60 1.80 2.00 2.15 2.25 2.50
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
335 1.04 1.30 1.46 1.56 1.67 1.88 2.09 2.24 2.35 2.61
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
345 1.11 1.38 1.55 1.66 1.77 1.99 2.21 2.38 2.49 2.76
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
355 1.17 1.46 1.64 1.76 1.87 2.11 2.34 2.52 2.63 2.93
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 400fps, using 0.20g BB resulting in an upper limit of 1.49j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90

Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 500fps, using 0.20g BB resulting in an upper limit of 2.32j.

Velocity BB Weight (Grams)
FPS 0.20 0.25 0.28 0.30 0.32 0.36 0.40 0.43 0.45 0.50
250 0.58 0.73 0.81 0.87 0.93 1.05 1.16 1.25 1.31 1.45
260 0.63 0.79 0.88 0.94 1.00 1.13 1.26 1.35 1.41 1.57
270 0.68 0.85 0.95 1.02 1.08 1.22 1.35 1.46 1.52 1.69
280 0.73 0.91 1.02 1.09 1.17 1.31 1.46 1.57 1.64 1.82
290 0.78 0.98 1.09 1.17 1.25 1.41 1.56 1.68 1.76 1.95
300 0.84 1.05 1.17 1.25 1.34 1.51 1.67 1.80 1.88 2.09
310 0.89 1.12 1.25 1.34 1.43 1.61 1.79 1.92 2.01 2.23
320 0.95 1.19 1.33 1.43 1.52 1.71 1.90 2.05 2.14 2.38
330 1.01 1.26 1.42 1.52 1.62 1.82 2.02 2.18 2.28 2.53
340 1.07 1.34 1.50 1.61 1.72 1.93 2.15 2.31 2.42 2.68
350 1.14 1.42 1.59 1.71 1.82 2.05 2.28 2.45 2.56 2.85
360 1.20 1.51 1.69 1.81 1.93 2.17 2.41 2.59 2.71 3.01
370 1.27 1.59 1.78 1.91 2.03 2.29 2.54 2.73 2.86 3.18
380 1.34 1.68 1.88 2.01 2.15 2.41 2.68 2.88 3.02 3.35
390 1.41 1.77 1.98 2.12 2.26 2.54 2.83 3.04 3.18 3.53
400 1.49 1.86 2.08 2.23 2.38 2.68 2.97 3.20 3.34 3.72
410 1.56 1.95 2.19 2.34 2.50 2.81 3.12 3.36 3.51 3.90
420 1.64 2.05 2.29 2.46 2.62 2.95 3.28 3.52 3.69 4.10
430 1.72 2.15 2.40 2.58 2.75 3.09 3.44 3.69 3.86 4.29
440 1.80 2.25 2.52 2.70 2.88 3.24 3.60 3.87 4.05 4.50
450 1.88 2.35 2.63 2.82 3.01 3.39 3.76 4.04 4.23 4.70
460 1.97 2.46 2.75 2.95 3.15 3.54 3.93 4.23 4.42 4.91
470 2.05 2.57 2.87 3.08 3.28 3.69 4.10 4.41 4.62 5.13
480 2.14 2.68 3.00 3.21 3.42 3.85 4.28 4.60 4.82 5.35
490 2.23 2.79 3.12 3.35 3.57 4.02 4.46 4.80 5.02 5.58
500 2.32 2.90 3.25 3.48 3.72 4.18 4.65 4.99 5.23 5.81
510 2.42 3.02 3.38 3.62 3.87 4.35 4.83 5.20 5.44 6.04