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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
Altra 204 Insert And Outsert 350 SpineThe Altra Reinforced Concentric Outset System (A. R. C. O. S.) is designed for Altra Arrows 204 Shafts, offering unmatched durability and performance through its precise 7075 T6 aluminum construction. The insert secures into the arrow shaft at a depth of 0. 875 inches, while the outsert threads directly onto the insert, encapsulating the leading end of the arrow by 0. 43 inches for enhanced durability. Pre installed rubber O rings lock the outsert in
The Altra Reinforced Concentric Outset System (A.R.C.O.S.) is designed for Altra Arrows 204 Shafts, offering unmatched durability and performance through its precise 7075-T6 aluminum construction. The insert secures into the arrow shaft at a depth of 0.875 inches, while the outsert threads directly onto the insert, encapsulating the leading end of the arrow by 0.43 inches for enhanced durability. Pre-installed rubber O-rings lock the outsert in place, reducing vibration and improving concentricity for a more precise arrow setup and increased downrange accuracy.Features:Fits Altra Arrows 204 Shafts; Constructed from 7075-T6 aluminum for durability; Secure insert depth: 0.875 inches; Outsert encapsulates arrow end: 0.43 inches; Pre-installed rubber O-rings reduce vibration and improve concentricity; Comes in 12 pk QTY; Available in four sizes: 250, 300, 350, & 400 spine; 53gn Total Weight; Accepts micro FMS insert weights; Enhances downrange accuracy and precision
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
4.1 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Helps fixing small engines
Size: 2 fl oz
⭐⭐⭐⭐⭐⭐⭐
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Reviewed in the United States on May 16, 2026
★★★★★ 5
It works like magic, saved me $150.
Size: 2 fl oz
I filled 1/4 tank of gas into my snowblower which I could not started, sprayed about 15 seconds of Start Your Engines, rock snowblower to mix well, let it sat for an hour. I pulled string and yet couldn't start engine. Unscrewed spark plug and spray some into cylinder, put the spark plug back and pull the string. ENGINE STARTED!!! SAVED ME AT THE LEAST $150.
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Great
Size: 2 fl oz
Great
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Reviewed in the United States on May 22, 2026
★★★★★ 1
Flimsy Nozzle
Size: 2 fl oz
The nozzle is so flimsy at the moment I pressed on it it popped off the can into the gas tank. I didn’t press it softly but I also didn’t press it very hard either, getting it out was a huge pain in the butt.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Good product
Color: Blue, Number of Items: 1
I like the product and it works as advertised
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Reviewed in the United States on February 16, 2026