


- Heat Gradation finish
- Ported slide & extended controls
- Ceramic "Whirl Valve" - Great in cold weather
If you love an innovative sidearm with a side of style, the G&G Armament GPM1911 CP Rainbow Edition Hi-Capa GBB Pistol belongs on your belt! A stunning pistol with a glamorous "heat gradation" finish applied to its frame, outer barrel and controls, the GPM1911 Rainbow Edition is a fantastic quality build with a precisely machined aluminium frame and a lightening-fast slide made from G&G's superb quality reinforced polymer.
Inside, the GPM1911 makes use of G&G's "whirl valve", a unique rocket valve design which spins during cycling to reduce the negative effects of "cooldown", resulting in improved FPS consistency and accuracy during rapid fire. The fill valve on the 30-round magazine is also enlarged, making filling much faster, so you can get back into action double-time.
A cutting-edge build in more ways than one, the GPM1911 CP is equipped with a ported slide with front serrations and extended controls to enhance handling, a 20mm Picatinny frame rail for a torch or laser and adjustable iron sights so you can land precise shots with ease. If you're a stylish skirmisher seeking a sidearm to match, the G&G Armament GPM1911 CP Rainbow Edition has your name on it!
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.
Frequently purchased with this pistol...
Description
If you appreciate distinctive aesthetics, you'll be into the G&G Armament GPM1911 CP Rainbow Edition Hi-Capa GBB Pistol! A gorgeous build combining colour-changing heat gradation accents with cold-hearted matt black parts, this Hi-Capa-based design is one of the best-built GBB pistols on the market and is packed with innovation, which gives it a significant performance edge.
Inside, the GPM1911 CP is broadly based on the TM Hi-Capa internal design, but sprinkled with G&G innovation. The rocket valve is the G&G whirl valve system, designed to spin during cycling to reduce frost build-up. This not only reduces FPS deviation between shots but also improves accuracy considerably compared to standard Hi-Capa nozzles. The fill valve is also enlarged, ensuring you can fill your mags double time and avoid missing out on the action!
Starting at the front, we can take note of the realistic barrel bore design, with a slightly recessed inner barrel to provide the enemy team with a realistic view as you send them back to respawn. While the barrel is not threaded, it does have a neat trick built in. Inserting the included bullet tool into the front allows you to adjust the unique HOP-up system.
Adjusting the HOP-up varies the amount of backspin applied to your BBs, letting you adjust for different ammo weights to get the flattest possible trajectory. The HOP-up bucking/rubber is a standard VSR/GBB design, and the pre-installed bucking is a G&G Green Bucking made from cold-resistant rubber, widely regarded as a great bucking which doesn't need upgrading.
The outer barrel itself is finished with a gloss heat gradation effect, mimicking the colour changes which occur when titanium is heated to high temperatures. This finish is positively mesmerising, changing from yellow through blue and purple as the light catches different surfaces, with a robust surface coating to resist wear and tear. While it is cold to the touch, the GPM1911 CP Rainbow Edition is hot stuff!
Surrounding the barrel, the slide is finished in contrasting matt black, making the heat gradation accents really pop. The slide is made from strong fibre-reinforced polymer designed to provide optimal gas efficiency while withstanding the rigours of hard use. The top and sides of the slide feature weight reduction ports, which improve cyclic rate and add considerably to the high-speed racegun looks.
The front of the slide also features slide serrations, matching the look of the rear serrations perfectly. These allow you to rack the slide from the front or rear, benefiting from enhanced handling in any weather conditions, with or without gloves.
The slide is also ported around the recoil spring housing at the bottom front, giving us a glimpse of its heat gradation finish through the dynamic, angled ports. The iron sights on the top of the slide are finished to match, bringing the stylish colour scheme together as a completed look. The front sight features a white dot, and the rear features anti-glare texture for ease of use in bright conditions.
These sights are adjustable for windage and elevation using the dials on the right side and top of the rear sight, letting you get pinpoint accuracy as long as you take the time to zero them. Adjustable sights are one of the enviable features of the Hi-Capa platform, ensuring you don't have to make do with the approximate accuracy of fixed sights.
On either side of the slide, we are equipped with G&G Armament trademarks, flawlessly engraved for a professional look. While these aren't "real steel" trademarks, they are very nicely designed, precisely engraved and follow the format of real steel 2011 pistols perfectly. The right-side markings read "GPM1911 CP", and those on the left read "G&G Armament" in G&G's unique font.
At the rear of the slide, mounted to the frame, we have our skeletonised hammer, finished in heat gradation and fitting in nicely with the vibrant, custom styling of the GPM1911 CP overall. The skeletonised design helps minimise hammer weight, but this won't mean low FPS as the hammer hits with a lot of authority when the trigger is pulled.
Moving down, we come to the frame, finished in heat gradation to complete the look. The frame is every bit as flawlessly machined and finished as the slide, boasting G&G Armament markings on each side and a 20mm Picatinny frame rail at the front, ready for a tactical flashlight or aiming laser.
Following the frame rail, we can take note of the extended slide lock/release lever, featuring an extended ledge to put this essential control easily within reach for those with smaller hands. The slide lock/release allows you to manually release the slide from its locked position at the rear, either when you've finished shooting or after a reload. You can also lock the slide open for a chamber inspection by pulling the slide back and pushing upwards on the lever.
At the rear of the frame, we come to the manual safety catches, mirrored on either side for ease of use for left or right-handed shooters. The manual safety allows you to carry the pistol "cocked and locked" safely, ready for a rapid engagement, straight from the draw. When deactivated, the safety also makes a fantastic "gas pedal" style thumb rest, allowing you to control recoil easily during rapid fire.
On the back of the grip, we have yet another safety device, known as the "beavertail grip safety". This safety prevents the pistol from being fired unless it is pressed in, ensuring it will not fire when dropped. This also ensures that you don't accidentally hit the trigger during an adrenaline-pumped reload. The beavertail present on the GPM1911 CP is an extended design, featuring an extension to ensure the safety is disabled as soon as the pistol is gripped.
Following a standard Hi-Capa modular build format, the frame and grip are separate pieces. The grip module is constructed from high-density polymer and features crackle texturing on the sides, with pyramidal texture on the front and rear. This provides the gripping qualities necessary for use in all weather conditions, with or without gloves.
As part of the Hi-Capa design, the trigger guard is integrated into the polymer pistol grip module, a squared trigger guard with a flat front face. On the front face, we're equipped with gripping texture for the support hand, allowing you to keep the muzzle flat during rapid fire using the "European Grip" technique.
At the base of the grip, we can find a low-profile magazine well flare, integrated into the grip module. This part is intended to help speed up reloads by providing a widened route to the magazine well, allowing for "eyes up" reloads and easier reloads on the move. While this isn't as wide a flare as competition-style Hi-Capas, it still does its job while maintaining a snag-free profile well suited to a combat pistol.
If you love unique builds with distinctive looks, top-notch external quality and impressive downrange effect, the G&G Armament GPM1911 CP Rainbow Edition Hi-Capa GBB Pistol is essential. Every bit as much a conversation starter as G&G's Macaron Blue and Pink platforms, the Rainbow Edition is a killer on the field as a bonus!
Features
- Matt Black / Heat Gradation finish - This pistol really pops!
- Aluminium/polymer hybrid build - Aluminium frame, polymer slide
- Ported slide design - Weight reduction cuts speed up cyclic rate & looks fantastic
- Unique adjustable HOP-up unit - Adjust at the tip of the barrel using the included tool
- Adjustable open iron sights - White dot front sight with anti-glare rear
- 20mm Picatinny frame rail - Ready for a tactical flashlight or laser
- Ported trigger design - Ties in nicely with the high-speed "racegun" looks
- Extended slide lock/release lever - Easy access for those with smaller hands
- Ambidextrous manual safety - Lock the trigger from the left or right side
- Beavertail grip safety - Ensures the pistol doesn't shoot unless gripped correctly
- Flared magazine well - Built into the grip module, helps guide your mag in during a reload
- Textured pistol grip module - Aids traction with texture on the front, rear and sides
- Skeletonised hammer design - Adds a stylish custom look, textured top for easy cocking
- Ceramic "Whirl Valve" - Great in cold weather, reduces cooldown during rapid fire
- Enlarged fill valve - Makes filling the mag with gas faster and easier
- Compatible with G&G Armament GPM1911 CP Hi-Capa Green Gas mags
Package Includes
- G&G Armament GPM1911 CP Rainbow Edition Hi-Capa GBB Pistol
- 30rnd Green Gas Magazine
- Speed Loader
- Hard Case
Specification
General
Platform Type | Pistol |
|---|---|
Over 18 | Yes |
Defence / UKARA Required | Yes, No, |
Prebuilt | Yes |
Included Items |
|
Skill Level | Regular Player |
Warnings | Lubrication is required |
Testing
FPS, using 0.20g BBs | Approx.310fps ± 10%, using 0.20g BBs |
|---|---|
Testing Notes | Tested using 0.20g Delta Armory Diamond BBs & SMART Green Gas |
Weight and Dimension
Weight (KG) | Approx.0.6KG |
|---|---|
Length | 23cm |
Construction
Primary Colour | Black |
|---|---|
Secondary Colour | Heat Gradation |
Construction | Aluminium frame, outer barrel, sights and controls. High density polymer slide & grip module. Steel pins & screws. |
Weapon Specific
Powered By | Green Gas |
|---|---|
Blowback Type | Gas Blowback |
Platform | Hi-Capa |
Magazine Compatibility | G&G Armament GPM1911 CP Hi-Capa 5.1 GBB magazines. |
Fire modes | Safe Semi Automatic |
Safety Features | Trigger Lock, Grip Safety, |
Shooter Configuration | Right Handed |
Platform Configuration | Standard |
Platform Scale | 1:1 |
Suggested BB Weight | 0.25g |
Hop-Up
HOP-Up Adjuster Type | G&G GPM system |
|---|---|
HOP-Up Adjustment Location | Adjust through the front of the outer barrel using the included HOP-up tool. |
Furniture
Furniture |
|
|---|---|
Rail System | 20mm Pistol Rail |
Sight Type | Open Iron Sight |
Barrel
Outer Barrel Length (in) | 5.1'' |
|---|---|
Inner Barrel Diameter | 6.08mm |
Inner Barrel Length | 108mm |
Magazine Specific
Magazine Type | Gas, Low Capacity, |
|---|---|
Magazine BB Capacity | Approx.30Rounds |
Gas Gun Specific
Gas Type | Green Gas |
|---|---|
Gas Recommendation | Green Gas |
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 |









