Double Eagle M66 Silent and deadly bundle

Double Eagle
£359.96 Pack price
Bought separately £424.96
Save £65.00
  • Perfect sniper bundle
  • 20mm Picatinny/M-LOK attachment
  • Bolt handle can be swapped to the left or right

If you are looking to try your hand at sniping, but want something which matches the modern, modular aesthetic of your primary AEG, the M66 will fit the bill! This spring-powered bolt action sniper rifle uses the impressive Tokyo Marui M40 internal system, combined with seriously mold-breaking features like its folding adjustable stock, adjustable pistol grip, QD sling points across the entire rifle, and aggressively styled 2-port muzzle brake. The icing on the cake? This rifle offers a convertible bolt handle straight from the factory, allowing the handle to be installed on either side of the rifle for both left and right-handed use.

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  • Bundle available
  • 20mm Picatinny/M-LOK attachment
  • Left-handed bolt conversion possible with additional parts

If you are looking to try your hand at sniping, but want something which matches the modern, modular aesthetic of your primary AEG, the M66 will fit the bill! This spring powered bolt action sniper rifle uses the impressive Tokyo Marui M40 internal system, combined with seriously mould-breaking features like its folding adjustable stock, adjustable pistol grip, QD sling points across the entire rifle, and aggressively styled 2-port muzzle brake. The icing on the cake? This rifle offers a convertible bolt handle straight from the factory, allowing the handle to be installed on either side of the rifle for both left and right-handed use.

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£199.99 Pack price
Bought separately £219.99
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Code: THO-10-018307
  • Wide range of magnification
  • 50mm Objective lens
  • Includes scope rings for 20mm Picatinny rail

With all the options in the world, it can be a lot to take in when you are choosing a riflescope. To further complicate things, Theta Optics has dropped this on us, a highly capable riflescope with a wide objective lens for maximum light transmission and magnification adjustment ranging between 3 and 15x. The scope has the performance of much larger optics but in a more compact form factor that would be at home on a small and lightweight Airsoft sniper rifle.

£84.99 Pack price
Bought separately £89.99
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Code:
  • Adjustable in all aspects
  • For M-LOK attachment interface
  • Inner alloy structure with textured polymer shell

The new Double Eagle M66 Sniper rifle has us all very impressed, and one of its most realistic aspects is its solid build quality, and substantial but not over the top (3.5kg) weight. Heavy is good, heavy is reliable, but heavy is also heavy, and it is nice to have something to support that weight whilst you concentrate on landing those BBs on target! Introducing the M-LOK Bipod from Double Eagle, a multi-adjustable bipod, styled to match the gorgeous M66 but compatible with any M-LOK rail system.

£49.99 Pack price
Bought separately £54.99
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Code: 605237
  • 14mm CCW thread
  • Mounts over the outer barrel
  • Requires a 14mm CCW thread adaptor

Looking to give your Airsoft Bolt action rifle the covert look? Need a little more length for a seriously long inner barrel? This Suppressor from Swiss Arms is the solution to your Longbois needs!

£24.99 Pack price
Bought separately £59.99
Save £35.00

Description

Double Eagle has been producing Airsoft guns for many years now, generally aimed at newcomers to the sport, offering functional AEGs, shotguns, and sniper rifles in unique styles and for a great price. More recently, Double Eagle has stepped outside of its old market to provide high-end AEGs with extremely advanced features and build quality to rival the old high-end brands. The Double Eagle M66 is the first sniper rifle from their new line catering to the more experienced and demanding Airsofter, and boy has it impressed us! The metals used in its construction are beautifully finished, and consistent across the rifle, and the polymer of the chassis is textured, indicating fibre reinforcement. This rifle is built like a tank, and looks a bit like one too with that beastly muzzle brake!

The M66 Sniper rifle is a close reproduction of the well-loved "Pro 700" stock, combined with a highly advanced modern precision rifle action. This makes the M66 one of the most cutting edge sniper rifle designs out there, jam-packed with awesome features which would usually cost an arm and a leg to add to a more traditional sniper rifle if it is even possible!

Starting at the tip of the aluminium outer barrel, we are treated to a 2-port muzzle brake, which mounts to the 14mm CCW male threads on the barrel, giving the rifle an aggressive look. The inclusion of a 14mm CCW thread means you won't need to buy an adapter if you wish to add a tracer or suppressor to the M66, saving you money and the headache of figuring out which adapter to buy! The outer barrel is 18" long, and with the muzzle brake, it comes in at 20", keeping this rifle relatively manoeuvrable whilst giving it the accuracy needed to perform its task. The profile of the barrel is slightly tapered, matching real sniper rifles and their generally wider profiled barrel near the receiver which grants improved accuracy. This is purely an aesthetic feature in Airsoft, but goes a long way to giving the M66 its realistic appearance.

As we move rearwards we come to the chassis, which is a hybrid polymer/alloy build. Mounted to the top of the chassis, surrounding the outer barrel we can find a 20mm Picatinny rail mount. This mount is used for thermal optics in the real firearm, but can easily be used to add a PEQ laser unit for Airsoft purposes, either for the look or to use in combination with an optical sight to measure your minimum engagement distance. This mount attaches to the stock using 6 Allen head bolts, allowing you to remove the mount if you aren't using it and want to save some weight. Moving down the chassis, we can note the M-LOK attachment slots on each side, and on the bottom. These allow you to mount M-LOK accessories, or add 20mm Picatinny rail sections for M-LOK and mount any accessory for 20mm rails, including bipods, which may be useful due to the hefty weight of this rifle. In front of the M-LOK slots, the M66 has two QD sling sockets, one on each side, providing sling mounting apparatus for a wide variety of sling setups using QD studs when coupled with the sockets at the middle, and rear of the chassis.

On the bottom of the stock, between the M-LOK attachment slots, we can find the HOP-up adjustment dial. This device allows you to adjust the amount of backspin given to your BBs, allowing heavier weights to be used when adjusted correctly, and providing improved consistency and wind resistance. The dial has helpful gauge markings surrounding it, and adjusts with an audible and tactile "click", locking your setting in place and allowing you to take note of which setting works best with which BB weight. This HOP design is based on the Tokyo Marui M40 system, provides superb consistency and is capable of lifting some weighty BBs. As such, we recommend using 0.3g BBs and above for this rifle.

Next up, we reach the receiver, which is a new design with angular surfaces and a reprofiled mock ejection port, which is mirrored on either side, for reasons we will get into later (get excited if you are left-handed!). This is a breath of fresh air compared to the standard VSR-10 receiver, which is styled after older variants of the M700 rifle and is prolific to the extent that it has become quite boring. The receiver is constructed from alloy and has a 20mm Picatinny rail running across the top for the addition of a rifle scope, or another optical sight of your choice. Within the receiver, we can find the bolt/cylinder, which has had a bit of a style up itself! The M66 bolt is spiral fluted, giving the rifle a custom look and leaning into the "modern precision rifle" look amplified by the barrel and other furniture. At the bottom of the chassis, beneath the receiver, we can find the rifle's magazine well, which is constructed from alloy and protrudes from the polymer chassis slightly to provide a flared opening for easier reloads. The M66 uses the TM L96/M40 style feeding, and hides a loading ramp within the chassis to funnel BBs forwards and into your HOP chamber for loading. This gives the M66 a more realistic feed position than the JG BAR-10 and others, but means BBs can remain inside the action after the magazine has been removed. To release these BBs, simply press the small lever inside the magazine well after the magazine has been removed.

Now, if you were already impressed with the M66, prepare to have your mind blown! This rifle not only features an adjustable stock, allowing the cheek riser to be raised and lowered, and the length of pull to be extended to fit any size of a human, but the pistol grip can also be adjusted! This is a feature that is usually found on real-world precision rifles, and is intended to allow the shooter to precisely adjust the placement of their finger on the trigger for a consistent, repeatable trigger press. To adjust the position of the pistol grip, simply remove the base plate by squeezing the tabs at the bottom of the grip together, revealing the storage compartment and the grip adjustment screw. The adjustment screw requires and Allen key to loosen, but once that has been done the grip can be slid back and forth and tightened down into place when you find your perfect position. This feature is surely wasted on us Airsofters, but shows the level of dedication Double Eagle have to not only mimicking the real Pro 700 stock, but providing ultimate flexibility and comfort too. For those with long fingers, you will certainly get some use out of this feature!

Time to discuss the best feature of this awesome, feature-packed rifle! You already suspected it, but now it is confirmed. The bolt handle of the M66 can be swapped to either side of the rifle, allowing those left-handed amongst us to have a bash at sniping, without having to turn the gun every time the bolt is worked, like Jackson from Saving Private Ryan. Undertaking the switch is remarkably easy, and requires no additional parts to be purchased. First, unscrew the QD sling point which covers the bolt handle recess on the left side. Next, lift the bolt handle up, to the open position, and unscrew the flat head screw at the rear (make sure the rifle is NOT cocked when you do this). Following this, unscrew the bolt handle recess on the right side, and swap it out with the QD socket we removed initially. Then, reinstall the bolt handle and rear piece the opposite way, and you are ready to whoop some *beep*, southpaw style!

Before we move on, we should discuss the ambidextrous features of the M66. Put briefly, it is fully ambidextrous. The safety catch is similarly styled to the standard M700/VSR-10, sitting comfortably beneath your thumb allowing the safety to be removed before that perfect shot with minimal additional movement required. The difference is, this safety is also on the left side of the bolt, meaning no reaching over the bolt handle to safe the rifle for the wrong handers! Whilst we are discussing safeties (yawn) it is worth noting that the M66 has a cocked indicator, which protrudes from the rear of the bolt when the rifle is cocked. This is a useful feature, made even more useful by the fact that the indicator is coloured red, granting excellent visibility but also protruding significantly, allowing you to confirm that your rifle is cocked in low light or pitch dark. The magazine release is also ambidextrous, being a paddle-style release, but has texture on the rear face, allowing the magazine to be dropped free using just your trigger finger, freeing up your other hand to grab the next mag.

Moving on to the stock, we are granted one of the most adjustable and flexible sniper rifle stocks out there today! The stock can be folded to the side for storage and transportation, allowing this chonky boi of a rifle to fit in much smaller gun bags than one might think. The stock folds to the right side and locks in position using a spring detent, which can be overcome by simply pulling the stock open. To fold the stock, simply press the textured button on the steel stock hinge mechanism to release the lock. The stock also features an adjustable length of pull and an adjustable cheek riser. These parts can be adjusted to fit your body without tools, simply by rotating the dials on the stock itself. The dial on the lower part of the stock raises and lowers the cheek rest, and the dial behind the cheek rest adjusts the length of pull. With the cheek rest at the right height, you can lock in your setting using the smaller knurled thumb screw beneath the cheek rest. The butt plate is constructed from thick and sturdy rubberized polymer and has a linear texture to ensure the rifle stays firmly in your shoulder.

Performance-wise, the M66 is far from a slouch. Coming out of the box shooting around 460 FPS with a 0.2g BB, you would be forgiven for thinking that this rifle might be hard to cock. Think again! The bolt throw of the M66 is buttery smooth, and surprisingly light, allowing a fast follow-up shot when you need it while reducing strain on your arms. The HOP system being derived from the Tokyo Marui M40 means it sports all the VSR-10 HOP-up perks, but in a new centrally adjusted form which keeps the BBs going straight and true. TM compatibility is one of the most important things to look for in a sniper rifle, and will allow you to fine-tune the rifle with a plethora of aftermarket parts to be even more of a game dominator than it already is!

So, for the southpaw snipers, and for the M-LOK lovers, or anyone who appreciates a well-built Airsoft sniper rifle full of considerate, innovative features, the M66 from Double Eagle is the perfect platform!

Features

  • 14mm CCW threaded outer barrel
  • QD sling points across the rifle
  • Ambidextrous magazine release
  • Reversible charging handle - Left or right-handed
  • Ambidextrous safety lever
  • Adjustable pistol grip
  • Folding multi-position stock w/ riser
  • Enlarged bolt handle
  • Externally adjustable HOP-up unit
  • 20mm Picatinny railed receiver
  • Remarkably smooth and light bolt pull
  • Additional front 20mm Picatinny rail mount
  • Tokyo Marui M40 based internals
  • M-LOK attachment slots on chassis and stock
  • 460 FPS +/- 10% straight out of the box!
  • VSR-10 Compatible inner barrel, HOP bucking, and trigger parts

Package Includes

  • Double Eagle M66 Pro 700 Sniper Rifle
  • Double Eagle M66 magazine
  • Speedloader
  • User manual

Specification

General

Weapon Construction External
Weapon Type
Snipers Rifle
Over 18 Only Icon
Over 18
Yes
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes
FPS Icon
FPS (Feet Per Second), using 0.20g BB
Approx. 460fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Yes
Package
Included Items
Magazine

Construction

Two Tone Icon
Pre Two-Toned
No
Weapon Construction External
External Construction
Polymer

Weapon Specific

Power Source Icon
Powered By
Spring
Blowback Icon
Blowback
None
Fire Select Icon
Fire Selector
Bolt Action

Hop-Up

Hop-Up Unit Icon
Hop-Up Unit
Yes

Furniture

Sight Type Icon
Sight Type
None

Product Testing Data

Notepad Icon
Test Description
460

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

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