1976 Roberts Paddle VI Retro Video Game Console Model VII + Rifle / Pistol pong | eBay
Coleco Telstar Arcade Pong Console With Gun, one Game Cartridge, Wheel | #1497988072
Console Portraits: A 40-Year Pictorial History of Gaming | WIRED
Light gun - Wikipedia
This is the V300 light gun rifle for the German Interton Video 3000 pong console. Not sure if it's licensed from Magnavox, or if they licensed it from Nintendo as Magnavox did. :
What was your first video game system? - Quora
12 light guns we loved and lost
Old Vintage Computing Research: The Pong you could program, possibly: the MOS 7600/7601