Related towards upgrade the TAC 41P, the spring guide, is the spring supposed to be loose around it or pretty snug. For example, the WASP piston spring guide makes taking the spring off near impossible, or at least exceedingly difficult. But the stock spring guide is exceptionally loose. So just curious if it makes a different or not?
Lessons learned from upgrading a Tac 41
Hey Folks,
So I got a Silverback Tac 41 a few months ago and was impressed with the out of box performance (except the spring power but I expected that). After doing some research, I determined that the best options for upgrades were either to buy the Silverback upgrade parts or purchase the Stalker upgrade parts.
I decided to go with the SB parts after some persuasion. The Stalker parts are quite expensive and the Tac was shooting consistently around 250 Ft (75M) with a M150 and AEG hop unit.
I purchased:
Silverback Advanced Piston Head
Silverback GBB Hop Unit
Silverback GBB Cylinder Head
Angel Customs 6.01mm 420mm barrel
Silverback Triangular Outer Barrel 420mm
Silverback Carbon Fiber Suppressor Short
Silverback Advanced Hop up Wheel
Novritsch Spring Shims
Novritsch 3-9 scope
The angel customs barrel was lapped/polished and R-hoped by our good friend SiliconeSword. The original plan was for him to install one of his SS-Nubs into the Hop unit with a lapped barrel and R-hop patch.
After the work had been done he sent the barrel/chamber back, and boy was the lapping and work he did super impressive. Unfortunately there was no hop being applied to the bb...UH OH.
Lesson One: The SB Hop chamber really only works with open barrels without a bridge. This is something I likely should have figured out quicker since the barrels that SB sells for the GBB chamber are bridgeless. After figuring that out I had to take apart the work he did and remove the R-Hop patch. Then I began the process of removing the bridge with a file.
![Wood Flooring Gas Writing implement Hardwood]()
![Writing implement Pen Office supplies Wood Office instrument]()
Luckily I had an extra Maple Leaf Autobot 60 degree sitting around. I put it on and tried to carefully install into the unit.
Lesson Two: You must be very careful installing the bucking into the GBB unit. The GBB unit goes together very differently than the AEG Chamber and has a metal sleeve that goes over the bucking. If you do not lube it well with something that will not impact function, it could rip the bucking.
Also DO NOT try to insert the bucking into the sleeve as in the picture below. You should slide the sleeve in from the muzzle and let it slide up the barrel and over the bucking. I tried to force it the other way and ripped my bucking.... 💩
I ended up having to order a Maple Leaf Autobot Silicone 70 degree and also ordered the Silverback Advanced Hop wheel because the plastic nub that comes with the SB hop units is a little lack luster.
After receiving the wheel/nub and the bucking I installed everything without ripping the bucking (Yay!). Unfortunately I was still not getting hop applied... I was very frustrated.
Lesson Three: Just because its made by Silverback, doesn't mean its going to be as good quality as it is expected to be. After a lot of trial and error I finally determined that the ramp under all the wheels was not contacting the Nub. It was as if the GBB unit was too tall with where the wheel attached, or the nubs were too short for the unit.
![Office equipment Audio equipment Electric blue Office supplies Gadget]()
After figuring out the issue, I came up with the idea to add material to the top of the nub. I actually used the laminated paper backing in the packaging for a bucking. I added two layers using super glue and finally had success with what I expected for this hop up.
![Insect Electric blue Pest Parasite Fashion accessory]()
Here is a video of the results : Silverback Tac 41 shooting 200 and 275 feet
In summary, I am very pleased with where my rifle performance currently is but am kinda bummed by some of the quality control of the Silverback parts. At this point, I kind of wish I had just gone with Stalker parts off the bat and had my barrel lapped as well. I will be opening a support ticket with Silverback about the nub but am glad to have a solution for it in the meantime.
![Guitar accessory Wood Wire fencing Font Musical instrument]()
Anyway thanks for reading my long winded post. Let me know if you have any questions on it.
So I got a Silverback Tac 41 a few months ago and was impressed with the out of box performance (except the spring power but I expected that). After doing some research, I determined that the best options for upgrades were either to buy the Silverback upgrade parts or purchase the Stalker upgrade parts.
I decided to go with the SB parts after some persuasion. The Stalker parts are quite expensive and the Tac was shooting consistently around 250 Ft (75M) with a M150 and AEG hop unit.
I purchased:
Silverback Advanced Piston Head
Silverback GBB Hop Unit
Silverback GBB Cylinder Head
Angel Customs 6.01mm 420mm barrel
Silverback Triangular Outer Barrel 420mm
Silverback Carbon Fiber Suppressor Short
Silverback Advanced Hop up Wheel
Novritsch Spring Shims
Novritsch 3-9 scope
The angel customs barrel was lapped/polished and R-hoped by our good friend SiliconeSword. The original plan was for him to install one of his SS-Nubs into the Hop unit with a lapped barrel and R-hop patch.
After the work had been done he sent the barrel/chamber back, and boy was the lapping and work he did super impressive. Unfortunately there was no hop being applied to the bb...UH OH.
Lesson One: The SB Hop chamber really only works with open barrels without a bridge. This is something I likely should have figured out quicker since the barrels that SB sells for the GBB chamber are bridgeless. After figuring that out I had to take apart the work he did and remove the R-Hop patch. Then I began the process of removing the bridge with a file.
Luckily I had an extra Maple Leaf Autobot 60 degree sitting around. I put it on and tried to carefully install into the unit.
Lesson Two: You must be very careful installing the bucking into the GBB unit. The GBB unit goes together very differently than the AEG Chamber and has a metal sleeve that goes over the bucking. If you do not lube it well with something that will not impact function, it could rip the bucking.
Also DO NOT try to insert the bucking into the sleeve as in the picture below. You should slide the sleeve in from the muzzle and let it slide up the barrel and over the bucking. I tried to force it the other way and ripped my bucking.... 💩
I ended up having to order a Maple Leaf Autobot Silicone 70 degree and also ordered the Silverback Advanced Hop wheel because the plastic nub that comes with the SB hop units is a little lack luster.
After receiving the wheel/nub and the bucking I installed everything without ripping the bucking (Yay!). Unfortunately I was still not getting hop applied... I was very frustrated.
Lesson Three: Just because its made by Silverback, doesn't mean its going to be as good quality as it is expected to be. After a lot of trial and error I finally determined that the ramp under all the wheels was not contacting the Nub. It was as if the GBB unit was too tall with where the wheel attached, or the nubs were too short for the unit.
After figuring out the issue, I came up with the idea to add material to the top of the nub. I actually used the laminated paper backing in the packaging for a bucking. I added two layers using super glue and finally had success with what I expected for this hop up.
Here is a video of the results : Silverback Tac 41 shooting 200 and 275 feet
In summary, I am very pleased with where my rifle performance currently is but am kinda bummed by some of the quality control of the Silverback parts. At this point, I kind of wish I had just gone with Stalker parts off the bat and had my barrel lapped as well. I will be opening a support ticket with Silverback about the nub but am glad to have a solution for it in the meantime.
Anyway thanks for reading my long winded post. Let me know if you have any questions on it.
21 - 40 of 51 Posts
Well from my experience with barrel lapping, a black bore is a welcome sight.
This is because all the microscopic scratches are pointed in one direction, or are so fine that light still doesn't reflect off of them.
This means that those barrels were likely push lapped, not twist lapped, and means that they should have a more consistent bore diameter.
You really don't see a black bore until 10 micron diamond paste, and you usually don't see a bore like that until 7 micron, which is what EdGi uses.
I'm incredibly excited for these to come out as it'll be the next big step for my DMR, next sniper, and MK23/future homemade pistol, as I will be able to save a bunch of air based on my calculations.
For more examples of a legit bore, here's some of my stuff.
![]()
![Gesture Wood Finger Gas Cooking]()
![Textile Sleeve Silver Grey Collar]()
![Table Wood Rectangle Floor Flooring]()
![Gas Nickel Household hardware Cylinder Metal]()
![Human body Gesture Wood Finger Art]()
![Wood Water Flash photography Fence Metal]()
![Vision care Writing instrument accessory Writing implement Font Eyewear]()
This is because all the microscopic scratches are pointed in one direction, or are so fine that light still doesn't reflect off of them.
This means that those barrels were likely push lapped, not twist lapped, and means that they should have a more consistent bore diameter.
You really don't see a black bore until 10 micron diamond paste, and you usually don't see a bore like that until 7 micron, which is what EdGi uses.
I'm incredibly excited for these to come out as it'll be the next big step for my DMR, next sniper, and MK23/future homemade pistol, as I will be able to save a bunch of air based on my calculations.
For more examples of a legit bore, here's some of my stuff.
Attachments
Custom mk23 you say? Lmk how that goes. Ive been wanting to pair a mk 23 with my TAC to try and quiet things up a bit.Well from my experience with barrel lapping, a black bore is a welcome sight.
This is because all the microscopic scratches are pointed in one direction, or are so fine that light still doesn't reflect off of them.
This means that those barrels were likely push lapped, not twist lapped, and means that they should have a more consistent bore diameter.
You really don't see a black bore until 10 micron diamond paste, and you usually don't see a bore like that until 7 micron, which is what EdGi uses.
I'm incredibly excited for these to come out as it'll be the next big step for my DMR, next sniper, and MK23/future homemade pistol, as I will be able to save a bunch of air based on my calculations.
For more examples of a legit bore, here's some of my stuff.
View attachment 21248![]()
View attachment 21247 View attachment 21245
View attachment 21246
View attachment 21244
View attachment 21243 View attachment 21249
21 - 40 of 51 Posts
