5KU MAD BUIS Flip Up Rear Sight (A) for M4/M16 Series


  • Model: AS6428
  • Manufactured by: 5KU


  • 5KU MAD BUIS Flip Up Rear Sight for M4/M16 Series.
  • Tactical Stand Alone Flip Up Rear Sight which is suitable for all M-Series & AR-Series.
  • Steel construction.
  • Utilize the same well proven concept as the rear sight on the RIS system.
  • Unique design of spring loaded rear sight.
  • Sight is held in the locked down position by a quick release lever.
  • Initial elevation zero utilizes the stand M-Series front sight bead.
  • 300 meter & 600 meter selection in just a flip.
  • Built in horizon line feature helps lead distance targets and lets the shooter square the rifle to counter windage offsets.
  • Mount on standard 20mm weaver base.
  • Constructed of casting Alloy Metal Material, extra Strong Shock Absorption ability.


  • 5KU model no. - 5KU-46-A
  • Color - Black
  • Weight - 65g
  • Material - Steel
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    This product was added to our catalog on Thursday 15 May, 2014.

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    Disclaimer: All airsoft guns, gas blowback guns, spring guns are NOT real firearms. All airsoft guns sold to US customers are affixed with an orange tip permanently.