Heckler & Koch MR223
Heckler & Koch MR223 — documented specs: caliber .223 Rem., barrel length 279–420 mm (10.98–16.54 in), overall length 711–948 mm (27.99–37.32 in), weight 3.6–3.8 kg (7.94–8.38 lb), capacity 2–30, production since 2007. The source for each figure is listed below the specs (catalog as of 10/16/2026).
- Category
- Semi-auto rifles
- Classification (DE)
- Depends on the configuration
- Designed
- 2007
- Origin
- Germany
- Calibers
- .223 Rem.
A gun counts as a handgun (Kurzwaffe) if barrel and breech together measure no more than 30 cm or its shortest length in proper use is no more than 60 cm – barrel length and stock (fixed, folding or telescoping) of the individual configuration decide. German WaffG, Annex 1 Sec. 1 Subsec. 1 No. 2.5.
Also known as: HK MR223 A3 · Heckler & Koch MR556
Specifications
- Action
- Gas operated
- Barrel length
- 279–420 mm (10.98–16.54 in)Depending on variant
- Overall length
- 711–948 mm (27.99–37.32 in)Depending on variant · stock collapsed to extended
- Weight
- 3.6–3.8 kg (7.94–8.38 lb)Depending on variant · without magazine
- Capacity
- 2–30Depending on variant
- Production
- since 2007
- heckler-koch.com — product page MR223
- heckler-koch.com — page MR223 Bedienungsanleitung 976646 003.0522
Sources
- thefirearmblog.com — article POTD: Heckler & Koch MR223 and MR308
Specifications come from the source cited alongside them; counts are based on our catalog as of the date stated. Not legal advice: what follows from these figures in a given country is decided by that country’s law. Waffenschrank is not affiliated with the manufacturers named.
Magazines that fit
Magazines that fit this model according to their manufacturer — with capacity, caliber and the limits by country in the accessories catalog.
United States (federal law): Federal law sets no capacity limit for magazines; the former limit expired in 2004 and has been repealed (18 U.S.C. § 922(w) (repealed)). Several states do limit capacity, however – for example California, New York, Connecticut, Maryland, Washington and Colorado – some as a sales ban, some as a possession ban. This list is not complete; the law of the state decides.
- MagazinesMagazine Heckler & Koch MR223, 10 roundsCapacity: 10 · .223 Rem. US: not covered by firearms law (states differ)
- MagazinesMagazine Lancer Systems L5AWM Gen1, 30 roundsCapacity: 30 · .223 Rem., .300 AAC Blackout US: not covered by firearms law (states differ)
- MagazinesMagazine Lancer Systems L5AWM Gen2, 10, 10 roundsCapacity: 10 · .223 Rem., .300 AAC Blackout US: not covered by firearms law (states differ)
- MagazinesMagazine Lancer Systems L5AWM Gen2, 20, 20 roundsCapacity: 20 · .223 Rem., .300 AAC Blackout US: not covered by firearms law (states differ)
- MagazinesMagazine Magpul PMAG 10/30 AR/M4 GEN M3, 10 roundsCapacity: 10 · .223 Rem. US: not covered by firearms law (states differ)
- MagazinesMagazine Magpul PMAG 20 AR/M4 GEN M3, 20 roundsCapacity: 20 · .223 Rem. US: not covered by firearms law (states differ)
- MagazinesMagazine Magpul PMAG 30 AR/M4 GEN M3, 30 roundsCapacity: 30 · .223 Rem. US: not covered by firearms law (states differ)
- MagazinesMagazine Magpul PMAG 40 AR/M4 GEN M3, 40 roundsCapacity: 40 · .223 Rem. US: not covered by firearms law (states differ)
- MagazinesMagazine Magpul PMAG D-60 AR/M4 GEN M3, 60 roundsCapacity: 60 · .223 Rem. US: not covered by firearms law (states differ)
Other models in .223 Rem.
Models from other manufacturers in the same caliber, drawn from the catalog in no particular order — not a recommendation and not a comparison of specs.
- Bolt-action riflesKeppeler Benchrest Gewehr
- Break-action riflesMerkel B4
- Semi-auto riflesOberland Arms OA-15 Premium
Related
- Calibers of this model.223 Rem.
- Related modelsHeckler & Koch G28Z
- Related modelsHeckler & Koch MR308
- Gun catalogAll models by Heckler & Koch
- KnowledgeInventory, valuation and insurance
- KnowledgeGuides
Catalog as of