Vitali SDM 1963
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| Sistema D’Arma Modulare 1963 Modular Weapon System 1963 | |
|---|---|
 The assault rifle configuration of the SDM. | |
| Type | Modular weapon system |
| Place of origin |  Cacerta |
| Service history | |
| In service | 1963 – present |
| Used by | Cacerta Ruvelka |
| Wars | Refusal War FedCom Civil War Imerti Conflict Nalayan Civil War Zemplen War |
| Production history | |
| Designer | Ilsa Vitali |
| Designed | 1963 |
| Manufacturer | Vitali Heavy Industries Durante Masterworks Ruvelya Fegyverzet |
| Produced | 1963 – present |
| Specifications | |
| Weight | LMG, MMG: 5.30 kg (11.68lbs) AR: 4.62 kg (10.19 lbs) Carbine: 3.58 kg (7.90 lbs) |
| Length | LMG, MMG, AR: 1,022 mm (40.25 in) Carbine: 931.7 mm (36.68 in) |
| Barrel length | LMG, MMG, AR: 508 mm (20 in) Carbine: 398.8 mm (15.7 in) |
| Cartridge | 5.56×45mm |
| Action | Gas-operated, rotating bolt |
| Rate of fire | LMG, MMG: 700 – 1,000 rounds/min AR, Carbine: 700 – 900 rounds/min |
| Muzzle velocity | LMG, MMG, AR: 991 m/s (3,250 ft/s) Carbine: 929.6 m/s (3,050 ft/s) |
| Effective firing range | 1,000 m |
| Maximum firing range | 2,653 m |
| Feed system | LMG, MMG: Belt-fed AR, Carbine: 20- or 30-round detachable box magazines |
The Vitali SDM 1963 (Italian: Sistema D’Arma Modulare 1963; “Modular Weapon System 1963”) is a Cacertian-built modular weapon system that can be configured as an assault rifle, carbine, or belt-fed automatic weapon. It was designed by Ilsa Vitali in the early 1960s and was adopted by the Cacertian Armed Forces after a lengthy trial period. It was later adopted by the Imperial Armed Forces of Ruvelka in the mid-1970s.
It was Cacerta’s first intermediate cartridge weapon utilizing the 5.56×45mm round and served as the primary assault rifle and infantry support weapon until the adoption of the AR556. Although it no longer serves the role of assault rifle, the carbine and LMG variants still see extensive use.