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McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG - Black

ID: 66940 (SR-ASG-50132)
4.0 stars, based on 3 reviews
McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG - Black
Hover or touch above to zoom
Optic and bipod not included


MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
CanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
Optic and bipod not included
The M40, known for its years of service in the hands of US Marines, began its life as a modified military type-classified version of the Remington M700 bolt action rifle. Later in its progression came the development of fiberglass A1 style stocks made by McMillan. The M40A3 began its development in the mid 90's and entered service in 2001 during Operation Enduring Freedom. Over its years of use the M40 has maintained a solid reputation for reliability and precision.


  • Fully licensed by McMillan Group International
  • Authentic 1:1 replica of the M40A3 fielded by USMC snipers
  • Aluminum barrel and receiver
  • High strength polymer stock
  • 20mm bipod rail (bipod sold separately)
  • Polymer 20rd magazine
  • 20mm optic rail
  • Smooth bolt and trigger pulls
  • Adjustable trigger pull and bolt stroke
Length: 1130mm
Inner Barrel: 475mm
Weight: 3400g
Magazine Capacity: 20rds
Muzzle Velocity: 410-420 (Measured with 0.20g BBs)
Fire Modes: Single shot, safety
System: High power spring
Package Includes: Gun, Magazine, Manual
Hopup: Yes, Adjustable

Manufacturer: ASG (Licensed by McMillan Group International)

ASG Limited Manufacturer Warranty:

This Sportline airsoft gun is backed by a 9 month limited warranty from ActionSportGames. Should this airsoft gun fail due to a defect in material or workmanship during the warranty period, ActionSportGames will repair or replace it, free of charge. Please see the included warranty card for warranty details.

FPS Range: 410-420

3 Customer Reviews

(Write a review)

by Jason C. on 07/17/2017
"Amazing sniper rifle for the price! The FPS is right where the field limit is and it shoots with great range and accuracy. (Extremely accurate in fact!) Great trigger response, light weight (but still feel robust), and fits just about any scope.

Quality internals! Best buck for the bang out there!
by Daniel M. on 06/01/2017
"Within the first 3 games played with this gun the bolt on mine broke and has proven pretty difficult to replace so far. I would like to note that those first two games were fantastic however. Add a good scope and its an excellent gun for the price but definitely be mindful that youre paying for a cheap $60 spring sniper in the body of an M40 giving it an added 20 dollars of just style points..

- 400 Fps can seem low for some people but this gun still has some good reach.
- Cheapest M40 you'll find
- Does have a very smooth bolt
- very accurate with the right BB's

- The barrel felt kinda bulky and short. Almost felt cartoonish
- Mine broke on my third game -__-
- Magazines are rare if they exist at all

Go in with low expectations and you may be pleasantly surprised.
Id give four stars before by gun broke but now I give a justifiable 3
by Jacob G. on 03/14/2017
"Bought this to replace my old broken Well MBO3. It definitely does the job and goes beyond what i expected for its price. When i chronoed it both at a local field and with my personal chronograph it shot in the 430 fps zone with .20s and 385 with .25s. While i love ASG products, this one could have been abit better. I absolutely hate the stock material. Now on to the pros and cons.

Shoots fairly fast for a entry level sniper
Very accurate out of the box
Lightweight but not too light
Crisp trigger pull

Cheap plastic stock
Scope not included
Stock creaks when its softly twisted.

Overall its a amazing gun but i think the quality of the internals took away from the quality of the build.

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