Big Dragon Flip-Up Front Sight Gas Block for M4/15/16

Big Dragon
Code: BD3832
  • Easy To Fit
  • QD Sling Points
  • Alloy Construction

Designed to be bolted onto any M4/16/16 outer barrel. An ideal accessory for those looking to fit a free-float RIS/RAS rail system but after a low profile front sight post to compliment their Airsoft AEG or GBB rifle.

Full description


The front sight post is built into the gas block which still has a hole for your gas rod to be inserted into. Very easy to install with 2 large hex style bolts and is kept straight by the gas rod. The sight is easy to lift up too and close with a reassuring click locking the post in position. The elevation of the sight is also slightly adjustable and the gas block features a QD attachment on each side. An excellent front iron sight, very robust being made from full metal and very easy to fit.


  • Secured by 2 large hex style bolts
  • QD sling point fitting on either side
  • Reassuring click when sight is fully open and closed
  • Full metal construction
  • Hole on the rear for locating the gas rod
  • Very low profile design
  • 20mm RIS/RAS rail section on top when the sight is closed
  • Adjustable elevation of sight post

Package Includes:

  • Flip-Up Front Sight Gas Block for M4/15/16



Sight Type Icon
Sight Type
Open Iron Sight


Colour Wheel Greyscale
Item Colour
Construction Icon
Patrol Base - Warning Icon
Patrol Base - Warning Icon
Parts Fitting
Patrol Base - Warning Icon
Unique Part

Sight Specific

Sight Adjustment Adjustments
Sight Zero Adjuster Method
Adjustment Tool Required
Sight Zero Location
Sight Mount Options
Barrel Mounted

Ironsight Specific

Flip-Up Ironsight
Spring Loaded Ironsight