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Discussion Starter · #1 ·
Just got my sba tac41 a few days ago.
I do not have time to run a full review at one phase so I will post in segments when I have time to look at different aspects of the rifle.
19039

First thing first, this rifle is solid.
Feels just as it should, the barrel really free floats in the stock, the handling is smooth and everything works as supposed to.
Assembly and dissasembly is quite simple also.
19040


Today it's the cylinder unit.
The piston bodies are compatible, just as the piston heads. As you see already installed the sear end on a VMP. For the removal I just used the nut included with the VMP and a screwdriver as a lever through the piston side hole. It also fits MouseFart piston head.

The good news is, since the cylinder head is full cncd so the brakes works even better than on the SRS. The 'bad' news is I had to install an other bumper O ring on the brake as you see (will be included in all MF order from now on). This required because the original piston head is 1mm longer, and with the MF the sear end slides 1mm further, so the sear can not engage the piston. With the extra O ring as a temporarly solution it works as intended. Already changed the design on MF1.4 to adapt this.

Regard muzzle energy and noise output you can expect about the same as in the SRS with similar setup. The sound is a little sharper and springy twang, but these are just the very first shots I took without optimaliseation. Racking of the bolt is very smooth already, got to get used to the old style bolt loading again 馃槄

The engagement of the sear is really effortless just as it should be, more on that on the trigger group segment.
So far happy!

Until next post feel free to post questions if you have any so I can take a look at those parts specially.
 

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Cool rifle. Even I am tempted but I would like to know a little more about it.

Feels just as it should, the barrel really free floats in the stock
I do wonder if this makes any difference. It may be a marketing gimmick.

Today it's the cylinder unit.
The piston bodies are compatible, just as the piston heads.
Is the cylinder bigger than the VSR10? Or is it the same? Do you have the dimensions?
 

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Just seen it is 41000mm cubed. VSR is about 36000mm.
This may be the new best rifle on the market. (Possibly) WOW
I have been telling manufacturers to make one like a VSR but with bigger Volume for years!!! Pretty much none of them ever done it until now. Good on Silverback.

I guess we will have to see how well this feeding tube goes (I would have designed it without this). The one other thing I am skeptical of is the trigger sear. The way it works (See video) is the sear moves downward to release the piston. This will put a lot of stress on the very tip of the sear. Most other trigger sears tilt forward as they release and this means less stress on the sear tip. I guess time will tell. After all, a rifle like this is just asking for an SP190 in it.
 

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This will probably be my go to rifle, since I do not like the VSR system (nothing wrong with it, just personal dislike). I wonder how easy it will be to tune the power of it, as in installing a bigger spring and thats it.
 

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Discussion Starter · #5 ·
This will probably be my go to rifle, since I do not like the VSR system (nothing wrong with it, just personal dislike). I wonder how easy it will be to tune the power of it, as in installing a bigger spring and thats it.
Yeah thats all, and the cylinder is quick release. From 1J to 4J just ~2 minutes.
 

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Goddamn how are you having it in your hands this early?
 
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Is the rail part of the receiver or can it be removed? The integrated TDC turret looks like a really good set-up. I'm kinda pissed I built a leftie VSR when this thing was coming out
 

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This currently is probably the best stock rifle (depending on how that trigger sear goes. I am very sketchy about that nd also how well it feeds with the feeding tube). I did do some checking and I see you can get a 43000mm cubed cylinder for the VSR10 from TNT. So, yes, this could be the best stock rifle, but an upgraded VSR10 may still beat it.
 

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This currently is probably the best stock rifle (depending on how that trigger sear goes. I am very sketchy about that nd also how well it feeds with the feeding tube). I did do some checking and I see you can get a 43000mm cubed cylinder for the VSR10 from TNT. So, yes, this could be the best stock rifle, but an upgraded VSR10 may still beat it.
User reviews of this kit however has been less than stellar, ranging from no real performance increase to actually being harder to pull.

And really higher volume, unless you are shooting at extreme hotness, has always been a d- waving contest that kind of doesn't really have much practical purpose.
 

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If you keep the same inner barrel then you will not get an increase in energy because the cylinder to barrel ratio will be incorrect. In fact, you may even lose energy because the bb exits when the piston has not accelerated to it's maximum speed. A normal VSR10 would use a 370mm inner barrel with 0.48gm bb's while the TNT would take a 450mm inner barrel.
 

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Discussion Starter · #11 · (Edited)
The sear is stainless and seems good so far. The thing is with this air volume dont even need too strong springs to reach high J.

The receiver and rail are one piece cncd.

Maybe a built vsr will be able to match this out of the box, for 2-3 times the cost, but this rifle can be upgraded further.

The feeding tube... Dont know yet, few mags ran through it without missfeed or jamm yet.
 

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The sear is stainless and seems good so far. The thing is with this air volume dont even need too strong springs to reach high J.

The receiver and rail are one piece cncd.

Maybe a built vsr will be able to match this out of the box, for 2-3 times the cost, but this rifle can be upgraded further.

The feeding tube... Dont know yet, few mags ran through it without missfeed or jamm yet.
Have you tried other general performance parameters (joule creep, consistency, hop effectiveness and general accuracy etc) yet? Can't wait for more info
 

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My only question on this rifle is what prevents the cylinder from eating the rear guide stopper like on a VSR?
 

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I would have designed it with UHMW, Delrin, or Teflon inserts that are easily found and replaceable.
In a VSR you would struggle to pull this off, but if you have a larger cylinder slot you could get away with this while still have a strong spring guide stopper.

I have a Delrin sleeve on the air fitting that goes into the cylinder slot for my BOLT, and before all that I destroyed a cylinder but now there's 2 extremely small grooves in the sleeve after double the shots I put through the last cylinder.
 

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Discussion Starter · #15 ·
The creep and consistencitiy is similar to the srs series. Not shot it long range yet.

The spring guide stopper is also stainless like the cylinder, nicely sliding on each other, doubt it could be grinded away regardless of abuse, but time will tell. The cylinder slot where the stopper slides could be polished further, now its just a bare milled surface.
 

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Discussion Starter · #16 ·
The chamber assembly is designed the same manner as the whole rifle. Simple, solid.
No tiny parts, everything massive and the assembly is simple, of course the chamber body is CNC milled. However the right alignment will be challange for some.

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The nub nicely fit into the chamber, no wobble, I would add a little more radius to it on the barrel axis, but it press the rubber equally already.

The 101% SRS sealing rubber fits perfect, seals as should. The old 100% series does not fit, the lips are too long for this chamber.
The stock barrel is nicely milled, just as good as previous Silverback inners, the standard R-hop fits it.

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I installed my new 510mm hybrid barrel with R-hop and 101% seal.
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The TDC wheel is a little too big for me, just the look of it, but you can adjust it even with gloves on. Firm clicks, solid adjustment, probably will never adjust itself ingame.

The feeding was perfect so far, but we all know if missfeed happens it will only ingame in the worst time 馃榿

The whole chamber and barrel assembly HAS to be installed with the nozzle and cylinder, before tightening the barrel screws. Just as on the SRS the nozzle has to be there to perfectly center the chamber.

It's still good!
 

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So I just finished my ssg10 build and am already ancy to start another sniper build. I want to do a SRS but after reading this I'm almost torn. Really the only reason I'd go with SRS over tac 41 is that I just did a vsr style. Just seems a little redundent to buy a different brand that probably won't outgun my ssg without putting the same time and money into upgrades. Even then they'll probably be even. Right? Thoughts
 

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The SRS has an awfully big and heavy mag that only has a standard capacity. This makes changing mags a pain and also carrying more is also a pain. The rifle is also not that light though it is a bull pup and so the weight is held closer to the body than most rifles but it is still heavy.
The bolt pull is also not in the best position.
The Tac 41 on the other hand has a light mag that has high capacity. The rifle is also a lot lighter and bolt pull should be OK. The Tac41 would be my pic out of the 2 by far.
 

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I just saw some Asian guy review the TAC41 and he says it's 2.6kg/5.7lb, and will of course be heavier after a scope, mount, magazine, and optional camo, suppressor, and sound dampening.

The stock also sounds extremely hollow and loud in his video, so definitely keep that in mind and consider other options if that matters to you
 

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Discussion Starter · #20 ·
The SRS has an awfully big and heavy mag that only has a standard capacity. This makes changing mags a pain and also carrying more is also a pain. The rifle is also not that light though it is a bull pup and so the weight is held closer to the body than most rifles but it is still heavy.
The bolt pull is also not in the best position.
The Tac 41 on the other hand has a light mag that has high capacity. The rifle is also a lot lighter and bolt pull should be OK. The Tac41 would be my pic out of the 2 by far.
None of these are true really... There are alu and even polymer mags, but the od steel mags are not heavy either. The 25/30 rounds /mag should be enough to any sniper. The mags fit any m4 pouch or even 3 in a 308 pouch. The a2 is only 2.3kg, with carbon barrel even less. And the mags could not be esier to change :D
The tac really has no advantage on it, except the look if some prefer that.
 
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