Short-barreled pistols in .300 Blackout are uniquely suited for close-quarters engagements, suppressed shooting, and versatile barrier performance. The profile, ergonomics, and component choices on a purpose-built pistol determine how it handles in real-world defensive and tactical roles.

CMMG MK4

Overview

The CMMG MK4 is a compact Semi Auto pistol chambered in .300 Blackout with an 8″ barrel and a 30+1 capacity. Offered in Very Good condition at $1,899.99, this example includes the Holosun HS510C optic (red reticle, solar panel, adjustable brightness and battery included), MAGPUL flip-up iron sights with co-witness, and an SBT telescoping brace for rapid shoulder indexing or pistol-mode carry. Shop this product to view the listing and purchase through the retailer.

Features that matter

Optics and sighting

The mounted Holosun HS510C delivers a reliable red reticle and solar-assisted power management, useful for long days at the range. With the included MAGPUL flip-up iron sights set to co-witness, you get a redundant sighting system for backup or zero confirmation.

Controls and ergonomics

CMMG equipped this MK4 with an ambidextrous charging handle and an SBT telescoping brace to tune length-of-pull. The 7.25″ Keymod handguard accepts accessories while keeping the profile slim and lightweight for fast manipulation.

Caliber and performance

.300 Blackout brings subsonic and supersonic flexibility in short barrels; in an 8″ platform this pistol balances terminal performance with manageable recoil and excellent suppressed options. For defensive or maneuvering roles, that flexibility is a distinct advantage.

Inventory note: this listing ships as a firearm and (1) 30‑rd magazine only. The seller states they do not test-fire used guns; all firearms are function checked upon receipt. For full specs and the retailer purchase button, View product details and pricing.

Why this MK4 stands out

The combination of a Holosun HS510C optic, co-witnessing MAGPUL sights, ambi controls, and a custom blue/gray Cerakote finish gives this MK4 both functional value and visual distinction. At $1,899.99 for a Very Good-condition Semi Auto pistol loaded with accessories and a 30+1 capacity, it’s a ready platform for users who want a compact .300 Blackout solution. Check current availability on the shop page to complete your purchase through the retailer.

People Also Ask

What makes this product stand out from competitors?

This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.

Is this product suitable for beginners?

Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.

What warranty or support is available?

The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.

How does this compare to similar products in its price range?

This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.

What maintenance is required?

Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.