Just looking back in time with a sketchy memory, wondering how the trend got started.

The first I know of were the rifles of Accuracy International. I don’t know their history, but I remember seeing literature about them in the 1980s.

quote:

Originally posted by cth1974:
The first I know of were the rifles of Accuracy International.

I was going to say Accuracy International as well, but then I thought of the German police’s request for a better precision rifle after the 1972 Olympic debacle. From what I can find, the Heckler & Koch PSG1 was developed somewhat after that, and would have been before the AI (I believe). The PSG1 didn’t have all the features of what are considered “chassis” systems today, but it was close in many ways, and I don’t know what would have predated the PSG1 with chassis features.

The Forgotten Weapons YouTube channel probably has videos about both weapons.

Added: On second thought, even though the PSG1 has some features that superficially resemble chassis systems, it does not have a barreled action held in a separate chassis-type stock. This is what AI Gemini has to say about the original question:

“The **Accuracy International (AI) Precision Marksman (PM)**, later adopted by the British Army as the **L96A1** in 1985, is widely recognized as the first precision rifle built from the ground up around a dedicated **aluminum chassis system**.”

The L96 clamshell stock is one of the first... "re-thinkng" of how rifle stocks work, but not what comes to mind when I think "chassis".

Oddly enough, wrong of not, the Sage M14 stock is what comes to my mind for early chassis's.

If you throw the AI out, the first commercially available chassis rifle probably wasn't very long ago. (as opposed to after market replacemnet chassis that have been for sale for years)