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McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: OD Green Exclusive)

ID: 74295 (SR-ASG-50156)
4.6 stars, based on 16 reviews
McMillan USMC M40A3 SportLine Airsoft Sniper Rifle by ASG (Color: OD Green Exclusive)
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.


  • 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
  • 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)

FPS Range: 410-420

California residents click here for Proposition 65 warning

16 Customer Reviews

(Write a review)

by Ben V. on 08/10/2018
"For an entry level Sniper this gun is decent. I had some issues in the beginning when shooting the gun the bbs wouldn't go super far then just drop straight down. I adjusted the hop-up and tried various weights off bbs until this gun started to shoot correctly. Now it shoots decently far and fairly accurate. The bottom rail attachment for a Bi-pod broke off on me. It's only screwed on with 2 small screws. I wish they we're bigger screws to keep it more secure. Oh, well. Some gorilla glue should do the job. I also had an issue with the bolt being jammed and not going back all the way. I had to open the gun and take the trigger mechanism apart. A small piece became loose and I put it back together and now my sniper shoots again. It's possible that dropping the sniper caused that small piece to move and start jamming the gun. The adjustable cheek rest doesn't stay put very well. When I rest my face on it, it starts to move and not stay in place. I bought this gun on sale for 79$ and I still think its worth it. However if your looking for something better quality go with something more expensive. It'll save you headaches in the future.
by Sammy P. on 05/22/2018
"Hey guys bought the m40a3 upgraded the spring guide, spring and piston. I've cleared almost 450 feet in distance, I have a buddy with a chronograph he's gonna shoot it and see what fps is but again almost 450feet I'm gonna say at least 700 to 800 fps seeing as how 350fps is 125-150 feet near doubled and then some, fashioned the spring and piston from raw material, bolt is a little harder to pull but it is holding together. Alot louder have to find some padding material to get into the bolt cylinder to quiet the piston slap. Other than that I give 5/5 great precision with right upgrades and fps to kill most rifles out there. Sad to say I traded down my l96 for this but after 13 years it was time to retire it.
by Austin S. on 05/19/2018
"I have had this gun for 5 months now and it still performs amazing. Shoots better than most snipers ever made. Only flaw is that the rail for bipod snapped off so be careful. YOU HAVE TO GET THIS GUN!! IT WILL SURPRISE YOU!!

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