The Shark Coast 300-111-1000-15 Military Grey AR is a 5.56 NATO semi-auto rifle built for shooters who want a ready-to-run platform without the custom-build headache. Chambered in 5.56 NATO with a 16-inch barrel and a 1:7 twist rate, this rifle ships with a MIL-SPEC trigger, a 6-position collapsible stock, and a 15-inch M-LOK free-float handguard. The shark coast 300-111-1000-15 military grey ar arrives ready for optics, lights, and your preferred grip setup—no gunsmithing required.
| Manufacturer | Shark Coast |
|---|---|
| Model | 300-111-1000-15 |
| Material | 7075-T6 aluminum upper/lower receiver, 4150 chrome-moly vanadium barrel (per manufacturer specs) |
| Compatibility | Standard AR-15 lower parts, mil-spec triggers, M-Lok accessories |
| Finish | Military Grey Cerakote (Type III hardcoat anodized under Cerakote) |
| Weight | 6.8 lbs (unloaded, no optics) |
| Condition | New |
Key Features
- 15-Inch M-LOK Handguard — Free-floated to eliminate barrel contact that throws off POI shift. The 7-slot M-LOK pattern at 3, 6, and 9 o’clock gives you direct attachment for bipods, lasers, or rail covers without adding bulky quad-rail weight.
- 1:7 Twist 16-Inch Barrel — Stabilizes 62-77 grain projectiles consistently. This twist rate is the standard for long-range ARs because it handles heavier match bullets like the 77-grain Sierra MatchKing without keyholing at 600 yards.
- Military Grey Cerakote Finish — Cerakote H-237G provides corrosion resistance and a low-glare matte texture. According to Shark Coast specs, this finish passes 1,000 hours of salt spray testing—critical for humid range environments or hunting in wet conditions.
- Mil-Spec Trigger Group — Single-stage with a 6.5-pound pull weight. It’s not a match trigger, but it’s consistent enough for intermediate precision work. If you need sub-MOA groups, drop in a Geissele SSA-E later.
- 6-Position Collapsible Stock — Adjusts length of pull from 10.5 to 13.5 inches. The Magpul MOE-style buttpad reduces felt recoil by 15% compared to standard A2 stocks, per internal testing data.
Who It’s For
This rifle is for the shooter who wants a competition-ready AR without paying a premium for a brand name. It fits the PRS Gas Gun division, 3-Gun tactical shooters, and anyone building a DMR that needs to hold 1.5 MOA with factory ammunition. If you’re the type who measures groups in inches at 100 yards and wants a platform you can upgrade piece by piece, the Shark Coast 300-111-1000-15 gives you a solid foundation with no corners cut on the barrel or rail.
Pros & Cons
- Pros: Free-float handguard, 1:7 twist barrel, Cerakote finish, mil-spec compatibility, sub-$1,000 price point
- Cons: Trigger is mil-spec weight (6.5 lbs) — you will want a trigger upgrade for precision work. The included BUIS are plastic and will need replacement if you run hard use.
Comparison
| Feature | Shark Coast 300-111-1000-15 | Zev Technologies OZ9 Elite | Geissele Super Duty 16 |
|---|---|---|---|
| Price | $994.74 | $2,199.00 | $1,899.00 |
| Barrel Twist | 1:7 | 1:8 | 1:7 |
| Handguard | 15″ M-LOK free-float | 4.5″ aluminum (pistol) | 15″ M-LOK free-float |
| Trigger | Mil-spec (6.5 lbs) | Flat face (4.5 lbs) | Geissele SSA (4.5 lbs) |
| Finish | Military Grey Cerakote | Black anodized | Black DLC |
| Weight | 6.8 lbs | 1.9 lbs (pistol) | 7.2 lbs |
| Best For | Budget precision build | Competition pistol | Duty/competition rifle |
One honest drawback: the mil-spec trigger will limit you to 1.5 MOA at best with match ammo. If you’re chasing sub-MOA groups, budget an extra $200 for a Geissele SSA-E or Timney Impact trigger.
FAQ
Is this rifle California compliant?
No. The Shark Coast 300-111-1000-15 ships with a standard 30-round magazine and collapsible stock, which does not meet CA, NY, or MA compliance requirements. Check your local laws before ordering.
Does it include a bolt carrier group and charging handle?
Yes. The rifle ships with a mil-spec 8620 steel bolt carrier group, black nitride finish, and a standard A2-style charging handle. The BCG is MPI tested per manufacturer specs.
Can I mount a suppressor on this barrel?
The barrel is 16 inches with a standard A2 flash hider (1/2×28 threads). You can remove the A2 and install a QD suppressor mount, but the barrel profile is not a heavy contour—expect POI shift with a can. A 1.5-inch groups may open to 2.0 inches with a suppressor attached.
What ammunition does the 1:7 twist prefer?
This twist rate stabilizes 62-77 grain bullets best. For precision, use 77-grain SMK or 69-grain Hornady BTHP. Avoid 55-grain FMJ if you want sub-2 MOA—the lighter bullets may not stabilize fully at longer ranges.
Does the handguard accept KeyMod accessories?
No. The handguard uses M-LOK only. KeyMod accessories require an adapter. Stick with M-LOK bipods, grips, and rail sections for direct mounting.
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Browse more: Semi Auto Rifles | AR-15 Uppers | AR-15 Barrels
Last updated: April 2026
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