New Designz X7 Phenom Spitfire Bolt and Spring Combo

The New Designz X7 Phenom Spitfire Bolt and Spring Combo offers you a lightweight bolt that is 62% lighter than your stock X7 Phenom bolt. The kit includes a hand picked custom spring that works perfectly with our new bolt.

Features:

• 62% lighter than stock, BIG decease in weight
• 8 port venturi face
• Adds 10+ fps increase in velocity
• Smooth face for hassle free operation
• Includes custom NDZ spring
• Better shot to shot consistency
• Improved accuracy
• Quieter operation
• Made in USA High Quality Products!