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McMillan USMC M40A3 Precision ProLine Airsoft Sniper Rifle by ASG (Color: OD Green)

ID: 50626 (SR-ASG-50098)
3.5 stars, based on 2 reviews
McMillan USMC M40A3 Precision ProLine Airsoft Sniper Rifle by ASG (Color: OD Green)
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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.

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  • Fully licensed by McMillan Group International
  • Authentic 1:1 replica of the M40A3 fielded by USMC snipers
  • Smooth, high power spring action shoots up to 430+ FPS
  • TM VSR10 compatible cylinder/piston, trigger group, and inner barrel, hopup bucking
  • Machined aluminum barrel and receiver with high strength polymer stock
  • Harris style bipod lug
  • 20mm Picatinny optic rail
  • 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.

The McMillan M40A3 by ASG does a great job of replicating this tried and true rifle. It features a heavyweight polymer stock with a machined aluminum receiver and barrel. Internally the ASG M40A3 features a metal VSR10-spec trigger box with high quality metal sears, and a light trigger pull. The piston and cylinder are TM VSR10 compatible and produce an impressive 430+ FPS muzzle velocity.

Length: 1130mm
Inner Barrel: 475mm
Weight: 3400g
Magazine Capacity: 20rds
Muzzle Velocity: 420~435 (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 Proline airsoft gun is backed by a 12 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: 430

California residents click here for Proposition 65 warning

2 Customer Reviews

(Write a review)

by Sam D. on 04/21/2017
"I bought this gun and it came out of the box looking good. First problem, it double feeds like heck. When you draw the bolt, if you don't pull it as hard as you can, it doesn't click and it double feeds. So, I took it apart and cleaned it. It comes apart in two pieces. After I cleaned it, the hop up started giving me problems. So, then I had to take it apart again and get inside of the barrel/exterior tube, which is threaded. After I got that taken apart and cleaned, the barrel was too tight, so the bolt kept jamming. I backed it up one thread and it worked fine but was super loose. Then I had put the brass barrel in but accidentally rotated it, so it wasn't chambering the BB. Then, just yesterday, I was shooting and it stopped feeding and jammed every time I tried to load it. So, I took apart the magazine and adjusted the spring and put it back together. Currently, as of today, it is functional. However, it has a low FPS and tends to shoot inconsistently. At least now I know the in's and out's of the gun. I love the look of it but its gave me nothing but problems so far. Im going to see how well it preforms in combat with a .3 gram BB. I've been using .25's so we'll see how it does.
by Tory W. on 08/15/2015
"As far as sniper rifles go, this is a true work of art. I especially enjoyed having the adjustable cheek piece, and the light trigger is like cocaine for your fingertips. The body was very unbalanced, but this is not a setback. It adds great stability and a suppressor and bipod can be added without making it front-heavy. And as with most snipers, it is extremely accurate.

The only problem I had with this was the low fps, which can easily be upgraded. Another was just the extreme unavailability of the magazines (which still puzzles me because they can't be the hard to make).

But aside from that, it was a really great rifle. Quiet and accurate. It's just a matter of magazine availability.

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