This pack contain Stern Defense AR-15 9mm Conversion Adapter for lower receiver, 9mm bolt carier and 30 round g mag. So a simple and nice attachment if you want proper conversion to 9mm without just naming your AR 9mm version.
Those models were scaled/made for my AR rifle Skelred that you can find here: https://www.cgtrader.com/3d-models/military/gun/skeletonized-ar15-skelred
But they should fit to any AR rifle you can find, as far as it have somewhat proper space for magazine and bolt. Its also perfect to any AR that have skeletonized body/open mag cover plates and you also want models for world scenes or inventory renders.
All three models have one PBR material in 2K(I seriously could not find any reason to make 4K for such small attachments).
Bolt verts: 403 Adapter verts: 582 Magazine(and ammo inside) verts: 2220
Made in Blender.
NOTE: gun model visible in two preview images is not part of pack, but you can find it here in cgtrader using link provided above.