SHARK COAST 300-111-1000-15 MILITARY GREY AR

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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Last updated: April 2026