Rock River Arms LAR-15M Ascendant ATH
Rock River Arms LAR-15M Ascendant ATH — documented specs for the Ascendant ATH: caliber 5.56x45 NATO · .223 Rem., barrel length 457 mm (17.99 in), overall length 968 mm (38.11 in), capacity 20. 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 Ascendant ATH
Specifications
- Action
- Gas operated
- Sights
- Rail only
- Barrel length
- 457 mm (17.99 in) · Ascendant ATH
- Overall length
- 968 mm (38.11 in) · Ascendant ATH
- Capacity
- 20 · Ascendant ATHmagazine supplied
- rockriverarms.com — product page LAR-15M .223/5.56 Ascendant ATH
Sources
- rockriverarms.com — product page LAR-15M .223/5.56 Ascendant ATH
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.
- Semi-auto riflesSIG Sauer SG 550 PE 90
- History & service armsZastava M21
- Semi-auto riflesBushmaster Bravo Zulu
Related
- Calibers of this model5.56x45 NATO
- Calibers of this model.223 Rem.
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Catalog as of