Diamondback Firearms OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 16in Medium Profile Carbine-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov
$91.49 at Ammunition Depot · 7 stores
In stock
Diamondback Firearms OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 16in Medium/M4 Profile Carbine-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov
No ratings yetBest price
$91.49at Ammunition Depot
In stock checked Oct 13, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Ammunition Depot Best price | $91.49checked Oct 13, 2026 | In stock | Buy at Ammunition Depot | |
| Kentucky Gun Co | $94.30checked Oct 13, 2026 | In stock | Buy at Kentucky Gun Co | |
| Sportsman's Warehouse | $103.00checked Oct 13, 2026 | In stock | Buy at Sportsman's Warehouse | |
| OpticsPlanet | $114.49Salechecked Oct 13, 2026 | In stock | Buy at OpticsPlanet | |
| Battlehawk Armory | $85.28checked Oct 13, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $86.99checked Oct 13, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $91.49 at Ammunition Depot. Dashed line = out of stock. Tracking since Oct 12, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $91.49 | $91.49 | $91.49 |
| Battlehawk Armory | $85.28 | $85.28 | $85.28 |
| Kentucky Gun Co | $94.30 | $94.30 | $94.30 |
| OpticsPlanet | $114.49 | $114.49 | $114.49 |
| Palmetto State Armory | $86.99 | $86.99 | $86.99 |
| Sportsman's Warehouse | $103.00 | $103.00 | $103.00 |
Since Oct 12, 2026.
About this part
The Diamondback Firearms OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 16in Medium/M4 Profile Carbine-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov is a 16" 5.56 / .223 barrel from Diamondback with a carbine gas system. It's sold by 6 stores (4 in stock), from $85.28 to $114.49. The lowest in-stock price in the last 30 days was $91.49 at Ammunition Depot.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Carbine · Handguards
- Muzzle thread
- 1/2x28 · Muzzle devices
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- Diamondback
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Gas system
- Carbine
- Barrel length
- 16"
- Thread pattern
- ½ x 28
From the manufacturer
Diamondback Firearms OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 16in Medium/M4 Profile Carbine-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov. 56x45mm NATO 16" Black - Specifications for Diamondback Firearms OEM Replacement FN Herstal M16 Barrel: Manufacturer: Diamondback Firearms Color: Black Nitride Finish: Nitride Caliber: 5.56x45mm NATO Barrel Length: 16 in Barrel Profile: Medium M4 Gas System Length: Carbine Length Firearms Threads Per Inch: 1/2x28 Barrel Twist Rate: 1-8 Barrel Material: 4150 CMV Steel Gun Make: FN Herstal Gun Model: M16 Weight: 1.8 lb Length: 16 in Diamondback 556C16MF50B8R OEM Replacement (M4 Contour) 5.56x45mm NATO 16" Black What firearm models does the manufacturer say Diamondback Firearms OEM Replacement FN Herstal M16 Barrel is compatible with? The manufacturer suggests that Diamondback Firearms OEM Replacement FN Herstal M16 Barrel is compatible with M16Diamondback Firearms 556C16MF50B8R: OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 16in Medium/M4 Profile Carbine-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov Black Nitride
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