M16A4 for Sale
Browse M16A4 listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The M16A4 is the final iteration of the M16 service rifle used widely by the U.S. military. Designed for reliability and precision with a flat-top upper receiver, it supports optics and accessories via Picatinny rail. Today, it remains popular among collectors, military enthusiasts, and marksmen for its historical value and performance lineage.
Why It's a Top Choice
- Battle-proven reliability across decades of service
- Full-length barrel for superior velocity and accuracy
- Flat-top rail supports customizable optics and accessories
- Uses standard 5.56 NATO ammunition and AR-15 mags
- Ideal replica or base rifle for military-style builds
Key Variants
FN M16A4
Made by FN America under military contract, favored for authenticity and mil-spec quality.
PSA M16A4
A cost-effective civilian model with an A2 stock and government profile barrel for training use.
Colt M16A4
Colt legacy build known for durability; a favorite among collectors and reenactors.
Windham Weaponry A4
A quality alternative that replicates M16A4 features at a competitive price point.
Anderson M16A4
Budget-friendly build with M16 aesthetics for range practice and recreational shooting.
Competitor Comparison Table
| Feature | M16A4 | Colt LE6920 | FN15 Tactical |
|---|---|---|---|
| MSRP | $1,000–$1,500 | $1,100 | $1,299 |
| Capacity/Size | 30+1, 20\" barrel | 30+1, 16.1\" barrel | 30+1, 16\" barrel |
| Weight | 8.8 lbs (loaded) | 6.9 lbs | 7.2 lbs |
| Optics-ready | Yes, flat-top rail | Yes | Yes |
| Trigger type | Mil-spec single-stage | Mil-spec | Custom alloy trigger |
| Notable pro | Long-range accuracy | Compact and proven | Enhanced for modern defense |
| Notable con | Longer and heavier | Lacks historical style | Higher cost |
Best Use Cases
- Marksmanship training
- Military rifle collecting
- Reenactment or display
- Long-range defensive applications
- Optics and accessory testing platform
FAQs
What is the difference between the M16A4 and AR-15?
The M16A4 has a 20-inch barrel and military-style A2 stock, while AR-15s vary in configuration.
Can I buy a civilian M16A4?
Yes, semi-auto-only M16A4 clones are available from brands like FN and PSA for civilian purchase.
How does the M16A4 perform at long range?
Its 20-inch barrel provides excellent velocity and accuracy out to 500+ yards with 5.56 NATO ammo.
Prefer nearby results? Toggle to search local listings.
FailZero Bolt Carrier Group FZ-M164-01-S
$166.99
FailZero M16/M4 FZ-M164-01-NH-MATTE
$151.99
FailZero M16/M4 FZ-M164-01-NH-MATTE
$151.99
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