
PTM-4M
Scatterable magnetic-influence anti-vehicle mineOpen-source manufacturer references connect AO NIII to the PTM-4M scatterable anti-vehicle mine family and its KB PTM-4M designation.
Sources: Fenix METIS KB PTM-4MManufacturer catalog
AO NIII (Scientific Research Engineering Institute) is a Balashikha-based Russian industrial institute and Rostec-affiliated manufacturer. Its public site emphasizes NIII TEST vacuum blood-collection products, while defense references and sanctions records connect the same entity to remote-mining munitions including the PTM-4, PTM-4M, and KB PTM-4M mine canister family.
1 weaponsAO NIII is the public-facing English label used for the Scientific Research Engineering Institute in Balashikha. The company site presents it as part of Rostec and focuses on NIII TEST vacuum blood-collection systems, while government and sanctions records preserve the AO NIII, AO Nauchno-Issledovatelskiy Inzhenerniy Institut, and JSC SREI naming variants.
Defense-industrial references describe AO NIII as a developer of modern Russian remote-mining munitions. Fenix Insight identifies AO NIII, also known as Factory 582, as the likely developer of the PTM-4M mine and KB PTM-4M mine-dispensing canister, and Arsenal Otechestva's 2015 institute history describes AO NIII work on PTM-4, KPTM-4, PTM-3, POM-2, and related remote-mining blocks for helicopter, ground, and rocket-delivered mine systems.
The public sourcing is split between the company's civilian-facing medical-products site, official and regulator records that establish the legal entity and address, and specialist defense sources that document the institute's munition work. For that reason, the manufacturer context is clearest when the medical-production public site is read alongside sanctions, Federal Register, Fenix METIS, and Russian defense-industry reporting.

Open-source manufacturer references connect AO NIII to the PTM-4M scatterable anti-vehicle mine family and its KB PTM-4M designation.
Sources: Fenix METIS KB PTM-4M
Fenix METIS describes KB PTM-4M as a mine-dispensing canister thought to carry two PTM-4M mines, while Arsenal Otechestva describes KPTM-4 with PTM-4 as a 1990s AO NIII development for remote-mining systems.
Sources: Fenix METIS KB PTM-4M, Arsenal Otechestva AO NIII historyArsenal Otechestva's institute history says AO NIII developed the PTM-4 anti-vehicle mine and KPTM-4 cassette in the 1990s as a further development of cassette munitions for VSM-1 and ground remote-mining systems.
Sources: Arsenal Otechestva AO NIII history
The company-site certificate PDF shows AO "НИИИ" with OGRN 1115001009210, which places the current legal entity in the 2011 registration cycle.
Sources: AO NIII partner certificate PDF
Arsenal Otechestva published an AO NIII history that described the institute's remote-mining work, including PTM-4, KPTM-4, earlier PTM/POM mine blocks, and TM-83 side-attack mine development.
Sources: Arsenal Otechestva AO NIII history
The Federal Register entry cross-checks the current alias set, including AO NIII, AO Nauchno-Issledovatelskiy Inzhenerniy Institut, and JSC SREI, together with the Balashikha address.
Sources: U.S. Federal Register entity listing
The EU consolidated sanctions text also lists the same alias set and address, reinforcing the canonical profile data used in the catalog.
Sources: EU consolidated sanctions text
The company's public web presence foregrounds civilian medical consumables, while sanctions and defense reference sources use several alternate spellings and abbreviations for the same entity. No rights-clear reusable manufacturer image was verified during this task, so images are omitted.
Category
Portable weapons used by soldiers and small units.