The Evolution®  4" Extension allows you to extend your EX series rail past the piston block or front sight base. Can also be used to add length to standard Evolution®  rails.
Specifications:
- Material: 6061-T6 Aluminum
 - Finish: Type III Class 2 Hard Coat Anodizing
 - Length: 4.0"
 - Weight: 4.4 oz
 
 
 
	
	
	
	
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