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Description
Boomstick UL-I Back - Gold PolishBoomstick DYE UL I Barrel Insert System Accuracy DYE versified. The new DYE UL I Barrel Insert System has reset the standard for accuracy and quality. The UL I is THE upgrade for paintball markers and offers unparalleled versatility and performance. The extended 8. 5 control bore utilizes multi stage precision honing and boasts the most accurate and consistent finish available in paintball. The self aligning three piece construction ensures properly
Boomstick DYE UL-I Barrel Insert System
Accuracy DYE-versified. The new DYE UL-I Barrel Insert System has reset the standard for accuracy and quality. The UL-I is THE upgrade for paintball markers and offers unparalleled versatility and performance. The extended 8.5” control bore utilizes multi-stage precision honing and boasts the most accurate and consistent finish available in paintball. The self-aligning three-piece construction ensures properly centered assembly between barrel back, barrel tip and insert. Our trademarked muzzle brake boasts progressive porting and optimized harmonics and an ultra-quiet sound signature that is aesthetically pleasing. Designed and refined by DYE Precision, the leading manufacturer in barrels for the paintball industry, this barrel insert system allows players to easily switch between different bore sizes to match their paintballs and optimize accuracy and efficiency on the field.
Whether you're a tournament player seeking ultimate accuracy or a recreational player looking to improve your performance, the UL-I Barrel Insert System is an essential upgrade that will elevate your paintball experience to new heights. Experience the precision, versatility and reliability that DYE Precision is renowned for with the new innovative UL-I Barrel Insert System.
Key Features:
- Interchangeable Bore Inserts: The DYE UL-I Barrel Insert System offers a set of 9 bore inserts with various diameters ranging from .676 to .692. These inserts can be easily swapped within the UL-I barrel system, allowing players to quickly adapt to different paintball sizes and achieve the best possible barrel-to-paintball match. Compatible with barrels that accept the PWR insert system.
- Precision-Machined Construction: Each bore insert and barrel component is meticulously machined from high-quality materials to ensure exceptional durability and consistency. The precise tolerances guarantee a tight fit between the insert and the barrel, minimizing air leakage, and maximizing shot consistency.
- Enhanced Accuracy: By using the appropriate bore size for the paintballs being used, the DYE UL-I Insert Barrel System significantly improves accuracy. A proper match between the paintball and barrel diameter reduces air turbulence and ensures a straighter trajectory, resulting in more precise shots and increased hit rates.
- Air Efficiency: With the ability to fine-tune the bore size, players can achieve optimal air efficiency. The right barrel-to-paintball match minimizes wasted air and ensures consistent velocity, allowing for increased shots per air tank fill.
- Quick and Toolless Insert Changes: Switching between different bore inserts is quick and hassle-free, thanks to the toolless design of the DYE UL-I Barrel Insert System. Simply unscrew the barrel from the marker, remove the current insert, and insert the desired one. The secure locking mechanism ensures a snug fit.
- Compatibility: The DYE UL-I Barrel Insert System is compatible with a wide range of popular “autococker” threaded paintball markers on the market. It comes in different lengths and threading options to accommodate various personal preferences.
- 8.5 Inch Control Bore
- Progressive Porting
- Ultra-quiet Sound Signature
- Optimized Harmonics
- Precision Multi-stage Honing
- Self-centering 3 Piece Design
- Slip Fit, Self-clamping Design
- Superior Accuracy
- Autococker Quick Threads (barrel back)
- Multiple Insert Bore Sizes
- Insert Compatibility: UL-I, *PWR Systems
*PWR™ trademark is owned by Planet Eclipse Ltd
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Amazing - Stop Scrolling and Buy This Pillow
Size: Queen (Pack of 1), Color: White
I have been an Amazon customer ever since the very beginning, and this is my first review. Not because I haven’t purchased tons of amazing things (and a few bad ones), just never felt the need.
However, I researched pillows for longer than I care to admit, and decided on this one.
I’ve had it for about six months and absolutely love it. No lie, I genuinely look forward lying my big head on it after a long day.
I am a side sleeper, but flip flop all around through the night and it’s great in every position.
Pros:
Stays nice and cool, which is soothing regardless of the time of year.
Has a sort of quilted textured pattern on the zip up cover, gives it a luxury feel, that breaths nicely even when a pillow case is added.
The fill is fully adjustable to your preference.
I knew it came with extra filling but was worried it would not be enough. Wrong. It was very full and I ended up taking some out until it was perfect.
It comes vacuum sealed and suggests it may take some time to fully take shape. However, I found it to be about 90% almost instantly and was sleeping on it a couple hours later.
There was no unpleasant scent sometimes associated with memory foam items.
The foam itself is very nice, a mix of what appears to be shredded and cotton candy cloud like. Very brilliant idea, as it is somehow supportive, soft and firm all at once.
The affordability of this pillow compared to some of the others in this category can’t be overstated.
Oh, and the packaging was very thoughtfully and securely done.
If you are like me, an over thinker, I would suggest just taking this for a spin. It’s amazing.
I’m not a bot, or working for the company. I’m just truly satisfied, love this pillow, and have been sleeping great.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
It's the perfect pillow!
Size: Queen (Pack of 1), Color: White
I purchased this pillow specifically for its customizable fill feature, which allows you to add or remove stuffing to suit your personal comfort needs. Due to the unique curvature of my cervical spine—forward at the neck rather than backward—I require a soft, semi-flat pillow rather than one that is thick or firm. Additionally, I often experience ear discomfort by morning, so a gentler surface is essential.
Upon adjusting the fill, I was pleasantly surprised by the generous amount of stuffing included. There was enough to fill an additional pillowcase, and I estimate it could easily create four to five more pillows. The ability to modify the pillow’s firmness at any time is an outstanding feature that makes it adaptable for a wide range of preferences and sleep styles.
This pillow has exceeded my expectations in both comfort and versatility. I highly recommend it to anyone seeking a personalized sleep experience.
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Reviewed in the United States on February 1, 2026
★★★★★ 4
Good quality pillows overall
Size: King (Pack of 2), Color: White
Got a set of these for my wife and myself as we were struggling with our old pillows. These have some really good qualities and some things we'd like to see changed.
First, the good: These are look and feel like they are high quality and made with good materials. The foam itself has a very nice feel to it. We love the fact they are adjustable to add or remove foam. They come with a pretty substantial amount already in the pillow. We appreciate the CertiPur certification.
Now the improvements or changes we'd like to see: The foam, while feeling great, doesn't bounce back well if you scrunch your pillows, and so every day you have to fluff and reshape the pillow, moreso than some other memory foam pillows we've owned. One side of the pillow is cooled and you can feel that even through the pillow case, and that's a great thing. However, one side is not cooled and we'd have preferred if both sides were made of the cooling material.
Overall, these are good pillows and we are not disappointed with the purchase. They are not, however, our perfect pillows (which do seem hard to find), and at some point in the future will probably make their way to the guest bedroom. We would rate them as some of the better pillows we've tried and feel most people would probably like them.
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Reviewed in the United States on December 19, 2025
★★★★★ 5
Perfect Pillow
Size: Queen (Pack of 1), Color: White
These are the best pillows ever. You can adjust the firmness or softness to whatever you want. For years i used a soft latex pillow , which you cant get anymore. I will never use another pillow. I have purchased 6 of these after the first one. You pick your own comfort level. Best ever. No more neck aches.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Hallelujah… finally, I found the right pillow!!!
Size: Queen (Pack of 1), Color: White
I have spent a lot of money searching for the right pillow. I recently tried to Tempur-pedic that cost twice with this pillow cost. Tempur-pedic flattened out. I’ve had this pill for a few weeks now and it works wonders. I am a paraplegic. You can have a lot of neck problems. I love the fact that this pillow is adjustable. I immediately saw it was too stuffy and took a bunch out. It works perfect so glad I didn’t spend money on a $200 purple pillow.
I read a lot of reviews and there were a lot of complaints about the odor. Mine did smell funny when it came out of the box. I immediately threw it in the dryer with a few bounce fabric sheets came out smelling fine.
Pillows are a very individual thing, but I think for 40 bucks this pillow is worth a try. I’m really enjoying mine about one of those silk pillowcases to go over it and it sleeps cool and comfortable. Best wishes in your search for the right pillow.
Update: I’ve been using this pillow several months and it continues. Give me a good night rest pain-free.. well worth the money.
UPDATE: I have been using this pillow for three months and it still works great. It does not flat out or get hot..
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Reviewed in the United States on January 29, 2026