What caliber is the HM Defense MonoBloc Upper?

It is chambered in 5.56 NATO (also listed as .223 Rem/5.56x45mm NATO).

Is the HM Defense MonoBloc Upper optic-ready?

Yes, no sights are included and the top rail is ready for an optic.

What type of product is the HM Defense MonoBloc Upper?

It is an AR upper receiver that integrates the upper receiver and barrel into a single machined piece.

Where can I buy the HM Defense MonoBloc Upper?

Compare current vendor offers on this page.

HM Defense MonoBloc Upper - 5.56 NATO, 9.5" Match Barrel

Name: HM Defense MonoBloc Upper - 5.56 NATO, 9.5" Match Barrel
Brand: HM Defense
SKU: UCF2MD7qF
Availability: InStock

The HM Defense MonoBloc Upper - 5.56 NATO, 9.5" Match Barrel is a 5.56 NATO parts from HM Defense. It is available from 1 vendor at $627.99.

From $627.99

Product Information

Name: HM Defense MonoBloc Upper - 5.56 NATO, 9.5" Match Barrel

Brand: HM Defense

Category: Parts

Caliber: 5.56 NATO

Barrel Length: 9.5"

UPC: 854164007227

SKU: UCF2MD7qF

Description

The HM Defense MonoBloc Upper integrates the upper receiver and barrel into a single machined piece, eliminating the barrel nut interface found in standard AR uppers. Chambered in 5.56, with a 9.5" match-grade 4150 Chrome Moly barrel in black Cerakote, it's a short-barrel configuration aimed at close-range and home-defense builds.