The Weaver 1-3x is an excellent value for the money. The scope is small, lightweight and inexpensive. It really feels like it is half the size of a Millet DMS-1 1-4x scope. The glass is very impressive for the money and better than many that cost twice as much. The downside is it only has a very simple cross hair reticle and no illumination. But, if you consider a 5.56 carbine a 0-300 yard gun like I do, it works very well. Weaver really, really, really needs to add a slightly better reticle to this optic. If they did and kept it at the current price range, it would dominate the entry level market.
With that said, I love my Trijicon TR24 Accupoint with the post reticle. It is the perfect optic for my general purpose 5.56 rig and I run one on my go-to rig. It is fast on 1x and the reticle is big as well as bright. It works better than an Aimpoint for me as I have a bad astigmatism, which causes an Aimpoint to be very blurry at times. on 4x, 100 yard targets are cake. Again, I consider my 5.56 carbines a 0-300 yard rig. So the reticle doesn't get in it's own way for me. I go to my Nitrex (re branded Weaver Super Slam) 2-10x or SWFA SS 3-9x for anything longer. So the 1-4x Accupoint works very well for me, particularly on my MSAR STG-556 & AR SBR.
I ran a Burris 1-4X XTR and really liked it. But I traded it for my TR24 Accupoint as that is the scope I love. I would not hessitate to get another Burris and am considering a Burris TAC30 1-4x in FDE to put on my tan MSAR STG rifle.