Woman strips and re-assembles rifle - GIF

Woman strips and re-assembles rifle.

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Previously:

.950 JDJ centerfire rifle - video
1600s wheellock birding rifle - photo
1:4 scale miniature pneumatic air rifle - video
Harrington and Richardson SPIW rifle - photo
Rifle muzzle shockwave deflecting rain - GIF
Rifle stock for right-handed, left eye dominant persons - GIF
Sturmgewehr 44 rifle with curved barrel and periscope - GIF
Tavor bullpup rifle cutaway - photos and video
Winchester Model 1866 water-cooled rifle - photo

High School Home Economics class in Ukraine. /s :)

what is the thin rod she removes from under the barrel? (I thought the gas piston was attached to the bolt carrier)
I presume the flashhider she screws off the muzzle is removed for cleaning purposes? (and to permit removeal of the thin rod I asked about)