Видео с ютуба Roller Delayed Blow Back

How Does It Work: Roller Delayed Blowback

Roller Delayed Blowback animation

Bearing Delay Firing Animation

The best PCC Operating Systems: Blowback, roller-delayed, gas, radial delayed.

Blocky (Roller) Delayed Blowback

HK Director of Training Bob Schultz Unpacks The Roller Delayed Blowback System

Почему роликовые пистолеты с замедленным затвором надежны?

Radial Delayed Blowback - A Closer Look

Система замедленного затвора в огнестрельном оружии

How Does It Work: Lever Delayed Blowback

How Does It Work: Roller Locking

roller-delayed blowback/Verschluss mit Verzögerung durch Rollen (G3, MP5)

Add Roller-Delay to Any AR-9 - Too Good To Be True??

Radial Delayed Blowback VS Roller Delayed Blowback!

Блокировка роликов против задержки: дополнение BotR к видеороликам Яна «Забытое оружие» по теме

CETME LC: Last of the Roller-Delayed Carbines

lever-delayed blowback operation

Blowback vs Delayed Blowback 9mm

[30] Maxim drop-in Roller Delay "RDB" for 9mm AR - My observations, slowmo and shooting. (re-upload)

How Does it Work: Gas-Delayed Blowback