Contact Us Tel:(626) 286-0360 Store Locations
Phone Support M-F 7am-5pm PST
Browse by Type or Category
FREE SHIPPING for orders over $149! New deals released hourly and daily. See Deals Here!

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

ID: 66940 (SR-ASG-50132)
4.7 stars, based on 57 reviews
McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: Black)
Hover or touch above to zoom
Optic and bipod not included
Youtube preview Product image 1 Product image 2 Product image 3 Product image 4 Product image 5 Product image 6 Product image 7


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)

FPS Range: 410-420

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.

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.

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.

57 Customer Reviews

(Write a review)

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.
by Jared M. on 05/17/2022
"Great budget sniper

picket up the green version for $75 2 years ago and it was/is great value I feel even for its current price. of $115

I'm yet to take it to a field as there are no outdoor fields near me but at least as a plinking gun, it's fantastic.
pretty accurate and is very comfortable to shoot.

plus it just feels nice to hold and shoot, the bold is very smooth and the trigger is nice.

I don't have that much to say about it just that as a first sniper or as a plinking gun you can't go wrong with it especially if you put a cheap optic on it

Good luck out there.

Comments & Community

Discuss about McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: Black) with your friends and fellow shoppers!

Have an urgent question about this item? Contact us, our resident experts are standing by to answer your questions!

California Proposition 65 Warning: Cancer and Reproductive Harm -