Rock River Arms LAR-15M Operator DMR
Rock River Arms LAR-15M Operator DMR — documented specs for the Operator DMR 20″: caliber 5.56x45 NATO · .223 Rem., barrel length 508 mm (20 in), overall length 927 mm (36.5 in). The source for each figure is listed below the specs (catalog as of 10/16/2026).
- Category
- Semi-auto rifles
- Classification (DE)
- Long firearm
- Era
- Present (from 1991)
- Origin
- United States
- Calibers
- 5.56x45 NATO · .223 Rem.
Derived from design and catalog dimensions under the German WaffG, Annex 1 Sec. 1 Subsec. 1 No. 2.5; the individual gun is what counts.
Also known as: RRA Operator DMR
Specifications
- Action
- Gas operated
- Sights
- Open sights
- Barrel length
- 508 mm (20 in) · Operator DMR 20″
- Overall length
- 927 mm (36.5 in) · Operator DMR 20″stock collapsed to extended
- rockriverarms.com — product page LAR-15M 20 Inch Operator DMR
Sources
- rockriverarms.com — product page LAR-15M 20 Inch Operator DMR
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.
Other models in 5.56x45 NATO
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.
Related
- Calibers of this model5.56x45 NATO
- Calibers of this model.223 Rem.
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Catalog as of