LWRC ICMKII 5.56 NATO 10.5in SBA3 30rd Black

Description

The LWRC ICMKII 5.56 NATO 10.5in SBA3 30rd Black is a purpose-built AR pistol that brings battle-proven engineering to a compact, maneuverable platform. Chambered in .223 Rem / 5.56 NATO, this pistol features a 10.50-inch cold hammer-forged barrel, a Monoforge upper receiver, and an M-LOK compatible handguard—all finished in a tough hard-coat anodized black. It ships with an SBA3 pistol brace and one 30-round magazine, plus flip-up front and rear sights out of the box.

Manufacturer	LWRC
Model	ICMKII (Individual Carbine Monoforge Mark II)
Material	7075-T6 aluminum upper and lower receivers; chrome-lined 4150 steel barrel
Compatibility	Standard AR-15 lower parts and magazines (Mil-Spec)
Finish	Black hard-coat anodized per Mil-A-8625
Weight	6.4 lbs (unloaded, per manufacturer specs)
Condition	New

Key Features

• Monoforge Upper Receiver – A single-piece, integral rail and receiver that eliminates the joint between upper and handguard. This gives you a rock-solid optics platform and zero shift under hard use.
• 10.5-inch Cold Hammer-Forged Barrel – LWRC forges this barrel from 4150 steel, then chrome-lines the bore and chamber. You get extended barrel life and reliable extraction even in adverse conditions.
• Nickel-Boron Coated Bolt Carrier Group – The NiB BCG reduces friction, runs dry without lube, and cleans up with a simple wipe. It also resists carbon fouling better than phosphate or nitride carriers.
• Two-Position Adjustable Gas Block – Nestled inside the handguard, this A5-style gas block lets you tune the gas system for suppressed or unsuppressed fire. It reduces recoil and keeps the action running clean.
• SBA3 Adjustable Pistol Brace – The SB Tactical SBA3 brace gives you a stable cheek weld without the NFA paperwork. It collapses and extends like a carbine stock, making this pistol easy to stow or deploy.

Who It’s For

This pistol is built for the shooter who values precision in a compact package. Whether you’re running a truck gun, a home-defense carbine, or a training platform for close-quarters drills, the LWRC ICMKII delivers. It also suits the traditionalist who appreciates forged receivers, chrome-lined barrels, and adjustable gas systems—features that prove their worth over years of use, not just on the spec sheet.

Pros & Cons

• Pros: Monolithic upper for repeatable zero; cold hammer-forged barrel for accuracy and longevity; adjustable gas block for suppressor use; included flip-up sights save you $100+; SBA3 brace is the most stable on the market.
• Cons: The 10.5-inch barrel yields lower velocity than a 14.5 or 16-inch build, so it’s less suited for long-range precision work. Also, the nickel-boron BCG is excellent but can be a bit more expensive to replace than a standard phosphate carrier.

Comparison

Feature	LWRC ICMKII 10.5″	Geissele Super Duty 10.3″	Zev Technologies OZ-9C 5.2″
Barrel Length	10.5″	10.3″	5.2″
Caliber	5.56 NATO	5.56 NATO	9mm
Upper Receiver	Monoforge (integral rail)	Standard upper + handguard	Standard slide + barrel
Gas Block	Adjustable, two-position	Fixed, non-adjustable	N/A (blowback)
Weight	6.4 lbs	6.2 lbs	1.8 lbs
MSRP	$2,789	$2,450	$1,899

The LWRC ICMKII stands apart with its monolithic upper and adjustable gas block—features you don’t get on Geissele’s Super Duty or Zev’s OZ-9C. If you need a compact rifle-caliber pistol that handles suppressed fire without over-gassing, the LWRC is the clear choice.

FAQ

Is the LWRC ICMKII 10.5″ legal to own as a pistol in my state?

Yes, this is classified as a pistol under federal law because it has a brace, not a stock, and a barrel under 16 inches. However, some states (e.g., California, New York, Connecticut) have restrictions on AR-style pistols. Check your local laws before purchase.

What type of buffer system does the ICMKII use?

It uses a carbine-length buffer tube with a standard carbine buffer and spring. The SBA3 brace slides onto this tube. The adjustable gas block lets you tune the action for different loads or suppressors.

Can I mount a suppressor on the 1/2×28 threaded barrel?

Yes, the barrel is threaded 1/2×28, which is the standard for 5.56 muzzle devices. You can attach a direct-thread suppressor or a QD mount. Just ensure your suppressor is rated for a 10.5-inch barrel.

Does the pistol come with a case or tools?

It ships in a LWRC branded box with the pistol, one 30-round Magpul PMAG, flip-up sights, and a manual. No hard case or tools are included.

Trust & Delivery

• ✓ Nationwide delivery (all 50 states)
• ✓ Ships 1-2 business days
• ✓ 30-day returns (unfired, in original packaging)
• ✓ Secure checkout (256-bit SSL)

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Last updated: April 2026