France is going MLok on the HK416. Starting next year the HK416F will be upgraded to using MLok handguards, HK slim stocks, and offset BUIS. The main motivation here seems to be to lighten the 416F to being closer in weight and bulk to the German G95 and Luxembourg spec 416A7.
They're using standard A5 profile barrels on those 416s. We don't really get into the lighter profile barrels until the 416A5 Project Hunter rifle and the 416A8/G95A1.
Article (in German) and photo of the final version of the G39 that will be fielded by the KSK. Sadly, article and site doesn't play well with Google translate as far as posting a translated link...
The G95A1 (pictured is the K variant) as it will be delivered to the German Army starting today:
https://www-bundeswehr-de.translate.goog/de/ausruestung-technik-bundeswehr/ausruestung-bewaffnung/gewehr-g95?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp...