Bolster Tuned EMG Rifle Dynamics RD-704P AEG

Bolster Tuned
Code: FB4172E-BA
£659.99
  • Full metal build
  • Tuned by Bolster Armouries
  • Gate ASTER™ ETU & Warhead Brushless Motor

If you love modern AK builds and premium pre-upgraded performance, you've met your match with the Bolster Tuned EMG Rifle Dynamics RD-704P AEG! Built by the same team that built the ultra-high-end Bolster Armouries ONYX AEG series, this tuned-up RD-704P benefits from all the experience and expertise gained from a lifetime of Airsoft tech work and plenty of successful Bolster Tuned AEG drops.

Inside, you'll find a Warhead 27K Base Brushless Motor for incredible torque and speed, with Bolster Armouries EZO bearings to keep the CYMA 13:1 high-speed gears running smoothly. To provide the advanced functionality everyone expects from a Bolster Tuned build, the space-aged Gate ASTER™ V3 SE MOSFET/ETU is installed, offering a wealth of programming options and equipped with the latest EXPERT Firmware.

To provide peak airseal qualities, the original CYMA nozzle was exchanged for the FPS Softair POM Air Nozzle with Inner O-Ring, which also improves feed reliability at its new stunning rate of fire. The original piston head has been swapped out for the Gate EON Power Hybrid Piston Head equipped with the Bolster Armouries Premium Piston Head O-ring, and the tappet plate was upgraded with the FPS Softair Carbon Fibre Reinforced Tappet Plate.

Naturally, the HOP-up has also been enhanced with a Prometheus Purple Hop Rubber with Nub to extend the range out to 60 meters and beyond with astonishing accuracy. If you're an AK kinda guy seeking a primary which will give the AR users a run for their money, you've found it with the Bolster Tuned EMG Rifle Dynamics RD-704P AEG!

Full description

Description

Click here to learn more about the original EMG Rifle Dynamics RD-704P AEG


Features

  • Full metal construction
  • Supplied in a Hard Rifle Case
  • Steel receiver & top cover - Robust & authentic
  • M4/AR-15 Buffer tube with SBA3 Brace - Fits sliding M4 stocks
  • Rifle Dynamics Tunable Gas Block - Matches the real RD-704P
  • Adjustable tangent iron sights - Similar to an AK, great for moving targets
  • 14mm CCW Male threaded barrel - Tracer/suppressor ready
  • Ambidextrous magazine release - Reload from the left or right side
  • 20mm Picatinny railed gas tube - UltimAK-style, ready for a red dot sight or tactical flashlight
  • Russian AK side rail mount - Add a 20mm Picatinny adapter to use Western optics
  • 6.03mm Tightbore inner barrel - Inspected for flaws and polished
  • Top wired: Battery compartment beneath the top cover - Fits 11.1V 20C 1200mAh AK Slim Stick Battery

Internal Upgrades & Tuning

  • Gate ASTER™ V3 SE Expert ETU Pre-installed
  • CYMA Platinum Version 3 Gearbox
  • Pre-cocking in semi-automatic mode
  • Prometheus Purple HOP-up bucking & Nub
  • FPS Softair Carbon Fibre Reinforced Tappet Plate
  • Expertly Shimmed - Ultra smooth cycling, minimal gearbox report
  • Bolster Armouries EZO Bearings - Strong & smooth in equal measure
  • Gate EON Power Hybrid Piston Head with Bolster Armouries Piston Head O-Ring
  • FPS Softair POM Air Nozzle with inner O-ring - Reliable feeding at high speed
  • CYMA 13:1 CNC Steel Gearset - Increases ROF significantly
  • AOE Corrected - 11.1V LiPo ready, 11.1V 1200mAh Slim Stick Battery recommended
  • Warhead Industries 27K Base Brushless Motor - Phenomenal speed and low heat build-up
  • 60m+ Effective range on 0.28g BBs - Outstanding
  • 25 RPS in Full Auto - BRRRRRRRRRRT
  • 320FPS consistently - Great for indoor or outdoors work
  • Expertly built by the Bolster Armouries Tech Team
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As with previous Bolster Tuned builds (formerly known as Patrol Base X Gate ASTER edition), this isn't your usual upgraded AEG. The Bolster Armouries tech team fully disassemble each of these AEGs down to every screw, bolt and bushing to perfectly tune the internals, polish the piston tracks and bearing holes, shim the gears to absolute perfection and replace parts to address the weak points in the original platform.

The Bolster techs treat these AEGs like they are building them for themselves, and if it doesn't pass their rigorous checks, which include a 60m accuracy test, it goes back to the bench for more work.

The Gate ASTER™ SE V3 MOSFET was added to provide advanced functionality for this retro beast, boasting programmable fire controls through the Gate Control Station app, Gate Blu-Link or Gate USB Link, adjustable pre-cocking for a ferocious trigger response in semi-auto, cycle timing control, adaptive active braking, adjustable trigger sensitivity, and voltage control.

These advanced functions combine to give this cutting-edge AK replica a wealth of functionality that is hard to beat.

The motor installed is the Warhead Base 27K Base Brushless Motor, offering a super speedy motor which uses high-strength, SH-rated Neodymium magnets. Being a brushless motor, the Warhead Base simply doesn't heat up, as the only friction generated inside is with the air. This keeps the motor cool, allowing you to let off some seriously long bursts guilt-free.

The Warhead moves the Bolster Tuned RD-704P up to the next level of Airsoft performance and puts it hot on the heels of the full-fat Bolster Armouries ONYX, ARKOSE, ATLAS, VULKAN and OBIRE builds.

To ensure reliable feeding at its new astonishing rate of fire, the Bolster team installed the FPS Softair Carbon Fibre Reinforced Tappet Plate paired with the FPS Softair Reinforced Polymer Nozzle with inner O-ring. Ideal for a precise build which requires perfect nozzle alignment, the FPS tappet plate is constructed from carbon fibre-reinforced nylon polymer.

This enhanced strength, with the perfect combination of rigidity and flexibility without being vulnerable to sudden fractures under heavy load, as a conventional polycarbonate tappet might. Naturally, it engages perfectly with the FPS Reinforced Nozzle, which improves airseal qualities, reduces shot-to-shot FPS deviation and ensures reliable high-speed feeding in the long term.

The CYMA piston head was found to be suboptimal in the RD-704P build. As such, the team installed the Gate EON Power Hybrid CNC Aluminium Piston Head, bringing a more premium part to the table to ensure FPS deviation between shots is minimised, resulting in considerable accuracy improvements and a tighter grouping at maximum range. The upgraded piston head is paired with the Bolster Armouries Premium Piston Head O-Ring, ensuring no air generated is wasted.

CYMA's 13:1 High Speed gearset has been retained from the original build, as the Bolster techs have been very impressed with its strength and performance. Running at a 13:1 ratio means the motor must rotate 13 times to cycle the gearbox, a significant speed boost compared to standard 18:1 gears.

These high-performance reinforced gears run on Bolster Armouries EZO Bearings to guarantee the perfect combination of strength and low friction. The EZO bearings allow the high-speed gears to spin freely at the tremendous rate provided by the Warhead Brushless Motor with minimal chances of failure, all while reducing stress on the gearbox shell and gear axles.

With a full internal overhaul carried out, this super-slick modernised AK is ready to go toe to toe with the best on the AR-15 platform. With 60+ meter accuracy, 28 rounds per second ROF and plenty of technology on board, the EMG Rifle Dynamics RD-704P AEG has reached a peak in its Bolster Tuned form!

Expand for more information

The battery compartment is beneath the top cover. To access it, simply press the button at the rear. It should come straight off, revealing a Deans/T-plug battery connector.

We recommend an 11.1V 1200mAh LiPo in AK stick configuration for a perfect fit and excellent performance. With the battery connected and installed, you can place the top cover back onto the receiver, align the button with the hole in the rear of the top cover, and pull the charging handle to lock the cover down if necessary.


Package Includes

  • Bolster Tuned EMG Rifle Dynamics RD-704P AEG
    • 140rnd Mid-cap Magazine
    • HASTA Hard Rifle Case

Specification

Battery Included
Battery Included
No

General

Weapon Construction External
Platform Type
Assault Rifle
Over 18 Only Icon
Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes
Screwdriver Icon
Prebuilt
Yes
Package
Included Items
  • Magazine
  • Hard Case
Skill Level Icon
Skill Level
Regular Player
Patrol Base - Warning Icon
Warnings
Li-Po
Li-Po - Never Leave Charging Unattended
Li-Po - Only Use Approved Chargers
Li-Po - Charge in a Fire Safe Area

Testing

FPS Icon
FPS, using 0.20g BBs
Approx.330fps ± 10%, using 0.20g BBs
Testing Notes
Tested using 0.20g Delta Armory Diamond BBs

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx.3.05KG
Weapon Length Collapsed
Length
79cm
Weapon Length Extended
Length (Extended)
86cm

Construction

Colour Wheel Greyscale
Primary Colour
Black
Construction Icon
Construction
Steel muzzle brake, receiver, top cover, fire selector & trigger guard assembly. Alloy front sight/gas block, trunnion block & outer barrel. Polymer pistol grip, handguard & stock. Rubber stock brace
Official License
Rifle Dynamics

Weapon Specific

Power Source Icon
Powered By
Electric
Blowback Icon
Blowback Type
None
Platform
Platform
AK
Magazine Style Icon
Magazine Compatibility
AK-47/74 AEG Magazines
Fire Select Icon
Fire modes
PatrolBase | Fire Select Safe
Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Patrol Base | Full Automatic
Full Automatic
Programmable
Weapon Safety Features Icon
Safety Features
Trigger Disconnect
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Platform Configuration
Standard
Weapon Scale Icon
Platform Scale
1:1
Suggested BB Weight
Suggested BB Weight
0.28g

Hop-Up

Hop-Up Unit Adjuster Icon
HOP-Up Adjuster Type
Slider
Hop-Up Unit Location Icon
HOP-Up Adjustment Location
Behind mock bolt carrier, accessible when the charging handle is pulled and held to the rear.

Furniture

Weapon Furniture Icon
Furniture
  • Railed Receiver
  • Ambidextrous Magazine Release
  • Ergonomic Pistol Grip
  • AR Buffer Tube
  • Adjustable open iron sights
  • Threaded Outer Barrel
  • QD Sling Point
  • Muzzle Brake
  • 20mm Top Rail
  • sling points front and rear
  • Russian AK style side rail mount
  • Ribbed handguards
  • Pistol stabilising brace
  • 20mm Picatinny railed gas tube
Rail System Icon
Rail System
20mm RIS / RAS, 20mm Picatinny railed gas tube,
Icon Stock Positions
Stock Type
Sliding, Multi-Position, Pistol stabilising brace,
Weapon Length Extended
Stock Positions
6
Sight Type Icon
Sight Type
Tangent Open Iron Sight
Sling Plate Icon
Sling Options
Stock, Handguard, QD, Loop,

Barrel

Outer Barrel Length (in)
11''
Icon Thread Type
Outer Barrel Thread Type
Male
Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
Outer Barrel Thread Size
14mm
Inner Barrel Diameter
Inner Barrel Diameter
6.03mm
Inner Barrel Length
Inner Barrel Length
275mm

Magazine Specific

Magazine Type
Magazine Type
AEG, Medium Capacity,
Magazine BB Capacity
Magazine BB Capacity
Approx.140Rounds

Electric Gun Specific Information

Gearbox
Gearbox Icon
Gearbox Version
V3Gearbox
Wiring Icon
Gearbox Wiring
Top Wired
Spring Change Icon
Gearbox Quick Change Spring
Yes
Digital Trigger Icon
Gearbox Electronic Trigger
Yes
Motor
Airsoft Motor Icon
Motor Type
Warhead Industries Base 27K Brushless Motor
Battery Specific
Battery Voltage
Battery Voltage
11.1V
Battery Type
Battery Type
Li-Po
Battery Connector
Battery Connector
Patrol Base | Icon | Deans
Deans
Suggested Battery Configuration
Suggested Battery Configuration
AK Slim Stick Configuration.

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