SKU: 5614103748

TAC 41 Hop-Up Chamber (GBB Bolt)

Sale price$38.66 Regular price$42.95
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

TAC 41 Hop-Up Chamber (GBB Bolt)TAC 41 hop up unit, optional TAC 41 GBB type hop up unit, for GBB inner barrel and GBB hop up rubber. Included parts: T41 0226 GBB hop up body (aerospace grade CNC construction) T41 0227 aerospace grade rubber seat (aerospace grade CNC construction) T41 0228 barrel clip (SS304 laser cut) T41 0202 hop up wheel T41 0203 concave nub T41 0224 feeder T41 0225 feeder spring guide T41 1008 spring HOP 316001 60 flat hop up rubber, GBB type M5X6 ISO7380 2

TAC-41 hop-up unit, optional TAC-41 “GBB” type hop-up unit, for “GBB” inner barrel and “GBB” hop-up rubber. Included parts: - T41-0226 “GBB” hop-up body (aerospace-grade CNC construction) - T41-0227 aerospace-grade rubber seat (aerospace-grade CNC construction) - T41-0228 barrel clip (SS304 laser cut) - T41-0202 hop-up wheel - T41-0203 concave nub - T41-0224 feeder - T41-0225 feeder spring guide - T41-1008 spring - HOP-316001 60° flat hop-up rubber, “GBB” type - M5X6 ISO7380-2 screw - M3X6 ISO7462 screws (x3) - M4X8 DIN7991 screw - M4X5 ISO4027 screws (x2) - 8 × 2 O-ring (x1) - 4 mm ball plunger This TDC (Top Dead Center) hop-up features a nub travel range of 0.75 mm, divided into 50 positions (15 µm per click). Includes a feeding system to prevent double feeding, 60° flat “GBB” hop-up rubber (SBA-HOP-41), and is compatible with “GBB” hop-up rubbers and “GBB” inner barrels. To fit different barrel brands, it can be installed using the barrel clip or the 3 M3X6 screws. Due to a different inner barrel position inside the hop-up, this unit requires inner barrels at least 3 mm shorter than an “AEG” hop-up unit using the same outer barrel, to prevent the inner barrel from protruding beyond the outer barrel. - The “510” outer barrel requires a 507 mm GBB inner barrel - The “420” outer barrel requires a 417 mm GBB inner barrel - The “330” outer barrel requires a 327 mm GBB inner barrel This hop-up unit is compatible with the advanced hop-up kit (SBA-HOP-34).

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 5614103748

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Inyo Pete
Lexington, US
★★★★★ 5
Great for protecting my maps
Size: Regular - 12 x 16 Inches
Fits my exploring maps just right. Heavier duty than expected. Ziplock closure is tight and should last for years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2025
K
Verified Purchase
Kara Coonrod
Lowell, US
★★★★★ 5
Great product
Size: Large - 16 x 22 Inches
Size and durability are great. My husband used these while at a military training
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Reviewed in the United States on April 30, 2026
A
Verified Purchase
Aaron
Dallas, US
★★★★★ 4
Terrific addition to your backpacking gear
I like this map holder for its versatility in holding different size maps. Once sealed, it was very effective at keeping moisture out and protecting the maps. I originally used this on a 13K mountain ascent. Worked great. The only thing that can be tricky at times is sealing the top. It's not as easy as sealing a typical zip-loc kitchen bag, takes some doing to get it to seal.
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Reviewed in the United States on May 26, 2025
B
Verified Purchase
BearKnife
Boise, US
★★★★★ 5
Best Map Case Ever!!!
Size: Regular - 12 x 16 Inches
Best Map case in the market! Field tested and keeps everything dry. The size is fantastic and you can run paracord through the rings. I would recommend this to anyone that uses a map. You definitely pay for what you get and that's high quality and functionality.
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Reviewed in the United States on August 13, 2025
K
Verified Purchase
Kindle Customer
Charlottesville, US
★★★★★ 5
Just right for protecting river trip guides
Size: Regular - 12 x 16 Inches
Nice and durable - heavy duty. Getting ziplock to close is a pain though - lick or spit helps.
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Reviewed in the United States on December 19, 2024

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