Bisley Mainspring No.5 By Ox brand_-Sportsmatch The Pulsar DSA (Challenger GS)

The Pulsar DSA (Challenger GS) is a day-scope adapter designed to couple the Challenger GS 1×20 night vision monocular to the eyepiece of a daytime riflescope

weighs 130 grains and uses a hollow-point boat-tail (HPBT) form designed from the ground up for long-range competition and precision work

sturdy answer to the everyday problem of carrying a heavy air cylinder around

One Shot Zeroing

*Anti-tick treatment effective up to 80 washes

Bisley Mainspring No.5 By Ox brand_-Sportsmatch The Pulsar DSA (Challenger GS)Available for a variety of Air Rifles, OX Springs are the worlds first Square Section air rifle mainsprings available to the public. Manufactured from Swedish High Content Chrome Maganese Carbon Silicon Tempered Spring steel, offering tensile strength in excess of 250,000 lbs per square inch.