AR15 16" 5.56 Barrel 4140 MT
$176.99 at Ammunition Depot · 5 stores
In stock
Best price
$179.99at Brownells
Out of stock checked Oct 22, 2026
In stock now instead
- AR15 16" 5.56 Barrel 4140 MT $176.99at Ammunition Depot
- Barrel Sub-Assembly 5.56mm - 16.1" Bbl Sub-Assy M4 1-7 1/2-28" … $176.99at Ammunition Depot
- Brn-4 Stripped Barrel 16" Heavy, 1-7, 1/2"-28, BLK Nitride $179.99at Brownells
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $179.99checked Oct 22, 2026 | Out of stock | Buy at Brownells | |
| OpticsPlanet | $189.99Salechecked Oct 22, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar barrels in stock
This part is out of stock at every store we track. These similar barrels are in stock, with today's prices.
Barrel Sub-Assembly 5.56mm - 16.1" Bbl Sub-Assy M4 1-7 1/2-28" Black Nitride
$176.99 at Ammunition Depot · 5 stores
In stock
Brn-4 Stripped Barrel 16" Heavy, 1-7, 1/2"-28, BLK Nitride
$179.99 at Brownells
In stock Sale
Brn-4 Stripped Barrel,10.4" Medium, 1-7, 1/2"-28,BLK Nitride
$179.99 at Brownells
In stock Sale
K9 11.5" Patrol Length Barrel 1-7tw 1/2-28 5.56mm
$180.00 at MidwayUSA · 4 stores
In stock
Spikes Tactical Barrel 5.56 - 8.1in CHF Pistol
$179.10 at OpticsPlanet
In stock Sale
Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $179.99 | $179.99 | $179.99 |
| OpticsPlanet | $189.99 | $189.99 | $189.99 |
Since Sep 28, 2026.
About this part
The AR15 16" 5.56 Barrel 416ss MT is a 16" 5.56 / .223 barrel from CMMG with a mid-length gas system. It's sold by 2 stores, from $179.99 to $189.99.
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
- Mid-length · Handguards
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- CMMG
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Gas system
- Mid
- Barrel length
- 16"
From the manufacturer
Chambered in 5.56mm NATO, these medium profile barrels feature a 1-7 twist with 1/2"-28 muzzle threads, and accept .750" diameter gas blocks. 16" barrel mid-length gas system. Mfg: Cmmg SPECS: 416 stainless steel. 1/2"-28 muzzle threads. 750" OD Gas Block.
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