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

ID: 66940 (SR-ASG-50132)
4.8 stars, based on 12 reviews
McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: 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

California residents click here for Proposition 65 warning

12 Customer Reviews

(Write a review)

by michael m. on 03/04/2018
"I was very skeptical before buying it but now that it came this thing is a beast the bult pulls very nicely while I dont know how long the gun will last I definently like it and use .30+ bb's
by Brian F. on 02/21/2018
"This gun is amazing! I have been in the progress of upgrading my JG BAR 10, but with parts all over the place, I needed a back up sniper. After watching House Gamers and Swamp Sniper raving the hell out of the gun, I decided to give it a shot.

Holy smokes; I understood why they were raving about it.

This sniper outperformed all of my expectations! A well deserved back up sniper; probably my next primary sniper!

Shoots amazingly straight (I use .4 and .43, depending on the field)
Sturdy construction

Can wobble a little bit
A bit heavy (can be a pro)

The screws to attach the barrel unit with the stock are included and are pre-drilled into the stock.
by Jonathan B. on 01/23/2018
"Absolutely love this sniper rifle. It shoots straight and very accurate. I used this at Fort Ord with no problems and got my friend hooked on this gun. 5 out of 5 stars for recommendations.

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