Quick Look
The M40A5 is a modernized version of the U.S. Marine Corps' M40 sniper rifle series, introduced in 2014. It focuses on enhanced modularity and improved ergonomics for precision marksmanship. The M40A5 remains a respected choice in military and law enforcement sniper applications.
Why It's a Top Choice
- Upgraded chassis enhances durability and handling
- Improved modularity with detachable magazine
- Accurate 7.62x51mm NATO chambering
- Standard issue for USMC marksmen
- Wide aftermarket support for customization
Key Variants
M40A3
Predecessor to the A5 featuring a fixed stock and traditional stock design favored for reliability.
M40A6
Latest generation with enhanced modularity and adjustable features for advanced sniper roles.
Competitor Comparison Table
| Feature | M40A5 | M24 | SR-25 |
|---|---|---|---|
| MSRP | $4,500+ | $5,000+ | $4,000+ |
| Capacity/Size | 5-round detachable magazine | 5-round internal magazine | 10-round detachable magazine |
| Weight | Approx. 15 lbs | Approx. 15 lbs | Approx. 9.3 lbs |
| Optics-Ready | Yes, Picatinny rail | Yes, scope mounts | Yes, full rail system |
| Trigger Type | Single-stage adjustable | Two-stage | Two-stage |
| Notable Pro | Marine Corps standard issue with upgrade focus | Proven Army sniper rifle with long service | Lightweight with high magazine capacity |
| Notable Con | Heavier than some modern sniper rifles | Internal magazine limits reload speed | Less proven in military sniper roles |
Best Use Cases
- Military sniper operations
- Law enforcement precision engagements
- Long-range target shooting
- Designated marksman roles
- Firearms collections and historical interest
FAQs
Can I use M40A5 optics on earlier M40 variants?
Yes, the M40A5 uses a Picatinny rail allowing compatibility with most optics used on earlier M40 models.
What caliber does the M40A5 fire?
The M40A5 is chambered in 7.62x51mm NATO, standard for Marine Corps sniper rifles.
How does the M40A5 improve over the M40A3?
The A5 adds a detachable box magazine, modular stock, and better ergonomics than the fixed-stock A3.







