They feature: 10 unique colors

Length: 97mm

Furthermore

but be aware that stronger springs will result in lower durability

COMPATIBILITY: FITS MOST HI CAPA GBB PISTOLS

LayLax Prometheus Hard Standard Bucking (Prommy Red) ICS They feature: 10 unique colorsPrometheus Hard Standard Bucking (Prommy Red) Proven performance, excellent range, and superior accuracy, use a Prometheus (Prommy) hard bucking in any build for an instant performance boost. Pair with heavy weight BBs for optimal performance. The superb quality and tolerances of the Prometheus bucking provides increased range, accuracy, and precision while creating the perfect air seal with excellent resistance to oil and wear. The build material