Which statement about 5-Meter Air Rifle stock rules is true?

• A. Factory-installed stocks may be altered in length and angle
• B. Stock modifications are not allowed
• C. All stocks must be replaced with standard issue
• D. Factory-installed stocks may be altered only in length

Answer: (D)

This question tests what stock modifications are allowed in 5-Meter Air Rifle competition. The aim is to let shooters fit the rifle to their body without changing how the rifle sits or aims.

Stock adjustments are permitted, but only in length. Being able to change the length helps you get a stable, comfortable position while keeping the rifle’s overall alignment the same. Changing the angle of the stock or other aspects could alter cheek weld, head position, and sight picture, which would unfairly affect aiming and stability. So the rule allowing alterations only in length matches the intent to maintain fairness while still allowing a proper fit.

Modifications that include adjusting angle or replacing the stock with a standard issue are not allowed because they would change how the rifle sits and points, giving an unfair advantage or reducing consistency. Stock modifications are not allowed in full generality is too restrictive for fit, and replacing the stock with a standard issue is overly strict.