BudsGunShop.com - Spring assisted?

Hi Hugens, No, Unfortunately they are not spring assisted. SPECS - SPECS - Leapers UTG AR-15 Flip-Up Rear Sight Features and Specifications: -Integral Picatinny Mounting Deck Fits All Flat-Top Receivers -Dual Aiming Apertures for Short and Long Range Shooting -Precision Windage Adjustments Enhance Shooting Accuracy -Robust Flip-Up Posi-Lock Design Guarantees Zero -Quick-Detach Capable -Locking Retention Thumb Nut Length: 1.3" Width: 2" Height: 1.9" Weight: 3.4 oz VIDEO HERE - youtube.com/watch?v=wEToKfXXPa8

Hugens, no Sir. This set is also fully "Manual" up or down and not spring assisted.

No, unfortunately they do not flip up with a button press like the MBUS type push button ones, you have to manually push it up until it locks. Found a video that shows it pretty well: youtube.com/watch?v=wEToKfXXPa8

no they are not spring assisted Leapers UTG AR-15 Flip-Up Rear Sight Features and Specifications:
-Integral Picatinny Mounting Deck Fits All Flat-Top Receivers
-Dual Aiming Apertures for Short and Long Range Shooting
-Precision Windage Adjustments Enhance Shooting Accuracy
-Robust Flip-Up Posi-Lock Design Guarantees Zero
-Quick-Detach Capable
-Locking Retention Thumb Nut
Length: 1.3"
Width: 2"
Height: 1.9"
Weight: 3.4 oz