Description
Razor · SKU 556-16M-17-M4-SS · 16? Government mid · 416R
16? Government mid. 416R stainless. Inspected before it ships.
A 16? Government-contour AR-15 barrel in 416R stainless, mid-length gas, 1:7 twist, 5.56 NATO chamber. Stainless finish, .750? journal, 1/2-28 muzzle, 11° target crown. Every finished barrel goes through a 100% inspection process. 100% American made.
Port sized to this length
Mid-length gas on a 16? does not share a port with a 14.5? mid or a 16? carbine. This SKU is drilled .076? for a 16? mid-length. Match the gas block to the .750? journal and the muzzle device to 1/2-28.
Product Overview
416R, not 4150
416R is the stainless barrel steel used when you want a clean bore, corrosion resistance, and a target crown more than a chrome-lined duty tube. Stainless finish on the exterior. No nitride, no chrome lining on this SKU.
Government contour, rifle length
16? Government profile keeps the classic AR weight distribution and a legal rifle-length barrel with a standard flash hider. Mid-length gas softens the impulse versus a 16? carbine port.
11° target crown
Muzzle is cut with an 11° target crown so the jacket leaves the bore clean. Threaded 1/2-28 for a standard 5.56 muzzle device. Do not assume a suppressor mount until the device and shoulder are confirmed.
100% inspection
Every finished barrel is inspected before it leaves. Chamber, journal, port, threads, and extension are checked to the listed spec. 29.0 oz. M4 extension. 100% American made.
Specifications
| Component | Specification |
|---|---|
| SKU | 556-16M-17-M4-SS |
| Platform | AR-15 |
| Length | 16? |
| Profile | Government |
| Material | 416R stainless steel |
| Finish | Stainless |
| Chamber | 5.56 NATO |
| Gas system | Mid-length |
| Gas block journal | .750? |
| Gas port | .076? |
| Twist | 1:7 right-hand |
| Muzzle thread | 1/2-28 |
| Crown | 11° target crown |
| Barrel extension | M4 |
| Weight | 29.0 ounces |
| Inspection | 100% of finished barrels |
| Origin | 100% American made |
Confirm gas-block ID against the .750? journal and muzzle-device pitch against 1/2-28. This is a 16? rifle-length barrel — no pin-and-weld required for a standard configuration. 416R stainless is not a substitute for a chrome-lined CHF tube on a sustained-fire or forced-reset schedule.
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