4UAD SmartAirsoft 4UANTUM Friction Pro High-Performance Bucking for Airsoft AEGs

"I used before only maple leaf buckings - Super, Macaron, Mr. hop. And could say that this buckings are much better, more accurate, more convenient and I can use the different bbs without changing bucking, forget about 60,70,80 degrees.

"wanted to right another review after I put this bucking in more of my guns, it has slightly longer reach that a maple leaf bucking, thats with the same weight ammo, but I have noticed that this hop up in particular seems to be more "finicky" than a maple leaf. I have never had a problem with a maple leaf hop up bucking, you just put them in and boom, you now have tons of range. with the 4uad I have noticed a problem with some rifles the bbs will usuallly curve left or right, usually at longer distances. it can get frustating when on another gun with the 4uad bucking it shoots straight as an arrow. there are so many varaibles when it comes the actualy hop up unit and inner barrel that you will go crazy trying to nail down the cause. the simple solution is to simply twist your inner barrel either left or right until you shots go straight. ignore the clip for the inner barrel, I mean leave it in, but its not the end all be all especially if your shots are curving hard right. after that then will see what this hop up is capable of and oh man, its incredible, this is now my go to hop up. still full stars

"R-Hop???? What's an R-Hop???
I'll take this over R-Hop or MR.Hop any day

So... I have this QUANTUM Friction PRO bucking/nub mated with a ProWin hopup unit installed on my Elite Force Competition Series HK-416A5 and the accuracy/performance is absolutely UNBELIEVABLE!!!!! The contact patch is thick and beefy compared to most buckings on the market. The construction of the bucking is quality made feels robust as well. The most amazing part... The bucking isn't even broken in yet and this setup is shooting tight groupings at distance... Consistently!!!!

IF YOU WANT YOUR WEAPON TO SHOOT WITH INCREDIBLE ACCURACY... 4UANTUM FRICTION PRO is the bucking for you! Lol

I setup a 10"x10" target at 127ft. 15 of 15 inside the target using .25g BBs and hopup dialed in.

4UAD Smart Airsoft have completely out-done themselves
I am now ordering one for my M4 Marksman's Setup.

"From what I can tell , there's are a lot like maple leaf buckings. I can't compare them ATM but if I ever get the chance I'll have to test. It. The only thing is I don't know how hard they are and I have it in my Sr25. It seems to give me good results so far.

"Best bucking I ever had. Highly Recommend. Shoots far and has tight groupings using a 6.01.

"This, a M4P Maxx Hopup, and a lambda one 6.01, all combine to make to make the most accurate gun I have ever owned, and that's after I built a gun with an umbrella armory R-hop. Solid bucking. I will die on this hill supporting this bucking. This is better than the Maple Leaf Bucking I replaced this with. Shoots far and has tight groupings. Highly recommended.

"heres my advice, buy this, NOW, before it goes out of stock, this is by far the best bucking I have ever used in airsoft and thats with over 20 years of expirence. bonuse points if you pick up a zci inner barrel in the length you need, JUST WOW this bucking is great and I am putting them in all my guns now.

"I had relatively low expectations for these as I have not had great luck with aftermarket hop-up buckings in my 15+ years of airsoft. One of the best buckings I've tried up to this point is the Maple Leaf. The Maple Leaf however still is not quite as good in my experience as perfectly setup RHOP. Needless to say these 4UAD buckings impressed me.

I bought 3 to test out on my CQB, Field, and DMR builds. All three builds have perfectly set up upgraded hop-up units and 6.02mm inner barrels (285mm, 455m, 510mm). I tested the 4UAD bucking against the Maple Leaf and RHOP using varies bb weights .28g-.42g. In every test, the 4UAD bucking out performed the RHOP and Maple Leaf set-ups. The 4UAD feed flawlessly and performed the best in range and accuracy in every test.

I am genuinely impressed with this bucking and I will be installing them in all of my airsoft AEG's going forward. If you install this bucking correctly in a quality hop unit with a quality barrel, you will be extremely please with the performance.

"Big fan of 4UAD. Have been following their YouTube channel for awhile now. I was super excited when these made their way to Evike. I ordered a few of the aeg and gbbr verisons. So far so good. I have this bucking in my krytac rec 7 with a polarstar kythera. So far I'm seeing great results and good accuracy up to 100+ feet. The hopup nub is almost identical to the maple leaf omega nub and the bucking is on the softer side. I am able to hop .36 no problem. I think this is going to be a good bucking long term. We will see how well it holds up over the coming months.

"So, I give the 4UAD friction pro bucking a 4/5. I certainly was intrigued and interested in the thought process of the creation of this bucking. I have been looking at bucking alternatives to the Maple Leaf silicone super macaron (60D & 70D). The setup that I ran this bucking with was in combination with a ICS stock metal hop up unit, EdGI Paragon Armory 6.05 377.5mm stainless steel inner barrel. Putting all of the parts together was smooth and everything looked perfect when I inspected it with the hop up turned all the way on. With the hop up turned all the way on, it looks pretty similar to the Maple Leaf silicone super macaron or an R-hop patch. I ran 0.30g bio bbs with this setup. I initially experienced midcap syndrome with my Krytac 150rds midcap, but I was able to troubleshoot it.

When it came to the performance, I was not amazed by it. The accuracy at range was decent, I can see the bbs flight having a awful spread at distance. I decided to swap out the bucking with the Tru-Hop Gen.3 bucking by TruSight Airsoft to compare the performance between the two. The Tru-Hop Gen.3 bucking has a different hop up mound, but similar principle and theory to the 4UAD friction pro bucking. The Tru-Hop Gen.3 bucking outperformed the 4UAD friction pro bucking in terms of increased range, accuracy, and fps.

I will continue to try to give the 4UAD friction pro bucking a chance with different barrel and hop up setups.

"I recently installed this hop-up bucking on my SSG build, and the performance has been outstanding. Using .25g BBs, I achieved impressive groupings with excellent range, consistently hitting center mass from considerable distances.

However, when I transferred the bucking to my Polarstar F2-equipped Cyma SR25, I encountered some issues. With the Maxx M4P Pro hop-up, the performance became inconsistent. If the hop-up wasn't adjusted precisely, shots would initially fly straight up, then after about four shots, they would start to under-hop. Occasionally, two shots would be perfect, but this inconsistency was frustrating. I was using .32g Tippmann Eco Green BBs at 80 PSI, producing 1.5 joules of energy.

In summary, this hop-up bucking excels in AEGs, particularly with heavier BBs. The aggressive contact patch shows great potential for optimal performance with heavier weights. I highly recommend using it for AEG builds, ensuring you pair it with the appropriate BB weight for the best results.

"I have gone through about 20 different buckings, not to mention 20 different barrels over the past year while tuning my HPA G28 ("DMR" Platform).

I was hopeful due to the adverts created and the hype on different forums, however, I was running into consistency issues with my system and this particular bucking.

I attempted to install it in different configurations to attempt to remedy the issues I was encountering, however, I did not come to a complete resolution.

Using this in the Begadi Hopup and all 3 different MAXX hop-ups (ME-PRO, New P*, and AEG models) I encountered a phenomenon where a few shots would be fine, then one would over hop, then directly after under hop a few more times.

I installed a Maple Leaf Super Silicone, and my system ran perfectly proceedingly.

I did not try this yet in a different system, but I will be sure to update when I do so.

PROS
- Quality rubber
- Nice packaging
- Comes with a nub

Cons
- Hop inconsistency issues (Need to try in different systems)