Other caliber compensator knobs available, including: 7.62×39/25-06/30-06/243 Win/270 Win/.308

Specifications:

• Laser Wavelength: 520NM

• Laser Power Output: <5MW

• Battery Type: CR123A (18 hours of Battery Life)

• Dimensions: 2.7”x2.2”x1.9” /

• Weight: 6.2 oz

• Construction: Aluminum
  
  

  The perfect size for your pistol or rifles when you need a fast effective up close shot with a 3 MOA. The Green Laser Bullet Drop Compensator comes with the .223 knob (other caliber knobs available separately: .25-06, .243, .308, .270 WIN, .30-06, & 7.62×39). It is backed by Osprey’s industry leading no-nonsense lifetime warranty.