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McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: Black)

ID: 66940 (SR-ASG-50132)
McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: Black)
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Optic and bipod not included
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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.
Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.


  • 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)
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.

Manufacturer: ASG (Licensed by McMillan Group International)

FPS Range: 410-420


Length: 1130mm
Inner Barrel: 475mm
Weight: 3400g
Magazine Capacity: 20rds
Fire Modes: Single shot, safety
System: High power spring
Package Includes: Gun, Magazine, Manual
Hopup: Yes, Adjustable

About ASG

ActionSportGames is a worldwide leader in the business of replica firearms and accessories manufacturing including Airsoft guns, Airguns, CO2 guns and firearms replicas. We specialize in 1:1 scale replica guns and accessories for fun, action, sports, entertainment and collection. Today were proud to be recognized as the innovator and manufacturer of the CZ EVO3 A1 AEG and having introduced several Airsoft versions of this popular Airsoft gun to the market.One of our goals is to become the preferred supplier in the firearms replica business through worldwide license agreements, quality brands and premium service before, during and after sales.

30 Customer Reviews

(Write a review)

by Jacob D. on 10/01/2023
"For the price, 5/5. Mine actually sounds clean, good airseal, it has excellent accuracy, and I let my friend use it in a backyard skirmish and he said that was the most fun he has had playing the sport so far. Just throw a cheap $11 bipod on and a $20 scope and you're gonna have fun for the same price as an aeg with no battery. It comes disassembled in 2 parts, but you can put it together with the included allen screws and the screws are washered to stay in place when disassembled so you don't have to keep up with them, they stay in the stock. I was distraught, looking for the screws and it took me 30 minutes to figure this out lol.
by Ethan D. on 10/14/2022
"This sniper is amazing for someone wanting to get into sniping. It's heavy enough that you don't feel like you're carrying garbage but light enough that you won't get tired holding it. It isn't the fastest shooting gun so I found that .32g bbs work the best for it, but with a few vsr10 upgrade parts and you can shoot .40g all day.

Really sturdy for the price
Good weight
Mags are cheap
Bolt pull is easy enough for kids to use
Upgrade parts are abundant

Has a "cheapy" sound when it fires
Sling mounts are on the right hand side for the gun. (Makes it awkward for some sling setups)
If you forgot that you had a round loaded and go to pull the bolt again it will double load and two bbs will fire

Overall its a great gun and I would totally recommend it.
by Amy M. on 08/19/2022
"This gun is amazing out of the box! Shoots far and accurate, and the hop up is amazing. Some people say it feels cheap but not at all, shoots and feels like a $500 gun. I was able to hit cans at 115 ft, and enemy’s at 200+. I want to get the upgraded S&T M40A3 spring to add fps and range. I am using .28 grams with the stock gun. Overall 10/10 gun for $100 bucks.

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