Whether a spring action or HPA sniper rifle is better in airsoft depends on personal preference and playstyle.
Spring action sniper rifles use a spring-loaded piston to compress air and propel the BB forward. They are generally more affordable than HPA sniper rifles and are often used by beginners or casual players. However, they require manual cocking before each shot, which can slow down the rate of fire and make follow-up shots more difficult.
If your into doing the teching thing and have ability to work on guns then I would suggest just going the cheaper route and build it the way you want it ,but if you aren't tech savy then may I suggest going the pre upgraded route which may be cheaper in the long run.
HPA (High-Pressure Air) sniper rifles use compressed air to propel the BB forward, which is supplied by a high-pressure air tank or remote line. They offer consistent and adjustable power and accuracy, making them a popular choice for competitive players who want maximum performance. However, HPA sniper rifles are generally more expensive than spring action rifles and require additional equipment such as an HPA tank and regulator.
In terms of performance, both spring action and HPA sniper rifles can be very accurate, but HPA rifles offer more consistency and are easier to adjust for different shooting situations. Spring action rifles can be more challenging to use effectively due to their slower rate of fire and the need for manual cocking.
Ultimately, the choice between a spring action and HPA sniper rifle comes down to personal preference, budget, and playstyle. Beginners or casual players may prefer a spring action rifle, while competitive players may opt for an HPA rifle for its performance and adjustability.