


- 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!
Fast Delivery
Delivery & Postage
Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.
For more information please check out our Delivery Information Page.
Estimates
Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.
UK 3-5 day Standard
£6.95
From
Dispatched with 24hr UK mainland
£8.95
From
Highlands / Islands
£24.99*
From
* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.
Returns
We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.
You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.
For more information on returning products, and how to do it please visit our Returns Policy Page.
Description
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
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!
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 | No |
|---|
General
Platform Type | Assault Rifle |
|---|---|
Over 18 | Yes |
Defence / UKARA Required | Yes |
Prebuilt | Yes |
Included Items |
|
Skill Level | Regular Player |
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, 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) | Approx.3.05KG |
|---|---|
Length | 79cm |
Length (Extended) | 86cm |
Construction
Primary Colour | Black |
|---|---|
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
Powered By | Electric |
|---|---|
Blowback Type | None |
Platform | AK |
Magazine Compatibility | AK-47/74 AEG Magazines |
Fire modes | Safe Semi Automatic Full Automatic Programmable |
Safety Features | Trigger Disconnect |
Shooter Configuration | Right Handed |
Platform Configuration | Standard |
Platform Scale | 1:1 |
Suggested BB Weight | 0.28g |
Hop-Up
HOP-Up Adjuster Type | Slider |
|---|---|
HOP-Up Adjustment Location | Behind mock bolt carrier, accessible when the charging handle is pulled and held to the rear. |
Furniture
Furniture |
|
|---|---|
Rail System | 20mm RIS / RAS, 20mm Picatinny railed gas tube, |
Stock Type | Sliding, Multi-Position, Pistol stabilising brace, |
Stock Positions | 6 |
Sight Type | Tangent Open Iron Sight |
Sling Options | Stock, Handguard, QD, Loop, |
Barrel
Outer Barrel Length (in) | 11'' |
|---|---|
Outer Barrel Thread Type | Male |
Outer Barrel Thread Direction | CCW (Counter Clockwise) |
Outer Barrel Thread Size | 14mm |
Inner Barrel Diameter | 6.03mm |
Inner Barrel Length | 275mm |
Magazine Specific
Magazine Type | AEG, Medium Capacity, |
|---|---|
Magazine BB Capacity | Approx.140Rounds |
Electric Gun Specific Information
Gearbox
Gearbox Version | V3Gearbox |
|---|---|
Gearbox Wiring | Top Wired |
Gearbox Quick Change Spring | Yes |
Gearbox Electronic Trigger | Yes |
Motor
Motor Type | Warhead Industries Base 27K Brushless Motor |
|---|
Battery Specific
Battery Voltage | 11.1V |
|---|---|
Battery Type | Li-Po |
Battery Connector | Deans |
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.
This table should be used for reference, and cannot be used to check one weight against another, as the weight of the BB affects the power.
In order to check if the BB can be used with your replica chronograph using the weight you wish to use and then compare it against the table.
Every time you change weights you will need to re-chrono and check against the table. This is not a conversion chart between weights.
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 |















