$109.99
List Price $129.99Save $20.00(15%)Warranty: N/A
Excluded from coupons
Earn 110 Bullseye Bucks
Out of Stock
Estimated in-stock date 04-09-23
Notify me when product becomes available
Sold & shipped by PyramydAir
Sold & shipped by PyramydAir
This FX Superior Smooth Twist X Barrel Liner (Superior STX Barrel Liner) was created using the same innovative exterior-pressed rifling, but using upgraded techniques and tighter tolerances for greater precision. The Superior STX will shoot both pellets and slugs with improved accuracy over the regular STX barrel liners. This 500mm version provides a good balance of power and convenience. Shooters will see the greatest accuracy from FX's new .25 caliber Hybrid Slugs using the Superior STX barrel liner. If you're looking for an easy way to upgrade your FX air rifle, get a Superior STX barrel liner and drop it in today.
FX Superior STX Liner, 500mm, .25 caliber
This item is not eligible for coupon discounts
Item Code: FX19976S [PY-A-9556]
Sold & shipped by PyramydAir
| Caliber | .25 (6.35mm) |
| Weight | 0.25 lbs |
Create an online review
Got a question or answer?
Log in to participate
4.5 (7 reviews)
3.0 (4 reviews)
Out of Stock
Estimated in-stock date 04-09-23
4.5 (230 reviews)In-stock
4.5 (157 reviews)In-stock
4.5 (106 reviews)In-stock
5.0 (55 reviews)In-stock
4.5 (47 reviews)In-stock
5.0 (35 reviews)Out of Stock
This item is past due. Check back for updates.
5.0 (28 reviews)
4.5 (19 reviews)
5.0 (13 reviews)Out of Stock
Estimated in-stock date 04-09-23
Get FREE shipping on qualifying orders!
Any order $150+ with a shipping address in the contiguous US
will receive the option for free ground shipping on items sold & shipped by Pyramyd Air during checkout.
Certain restrictions apply.
Free shipping may not be combined with a coupon unless stated otherwise.
View Shipping Info
We work hard to get all orders placed by 12 pm EST out the door within 24 hours on weekdays
because we know how excited you are to receive your order.
Weekends and holiday shipping times will vary.
During busy holidays, we step our efforts to ship all orders as fast as possible,
but you may experience an additional 1-2 day delay before your order ships.
This may also happen if you change your order during processing.
View Shipping Times
It's important to know that due to state and local laws, there are certain restrictions for various products.
It's up to you to research and comply with the laws in your state, county, and city.
If you live in a state or city where air guns are treated as firearms you may be able to take advantage of our FFL special program.
U.S. federal law requires that all airsoft guns are sold with a 1/4-inch blaze orange muzzle
or an orange flash hider to avoid the guns being mistaken for firearms.
View Shipping Restrictions
We have a team of expert technicians and a complete repair shop that are able to service a large variety of brands/models of airguns.
Additionally, we are a factory-authorized repair/warranty station for popular brands such as
Air Arms, Air Venturi, Crosman, Diana, Seneca, and Weihrauch airguns.
Our experts also offer exclusive 10-for-$10 Test and 20-for-$20 Service,
which evaluates your air gun prior to leaving our warehouse.
You'll be able to add these services as you place your order.
View Service Info
Shop and purchase with confidence knowing that all of our air guns (except airsoft) are protected
by a minimum 1-year manufacturer's warranty from the date of purchase unless otherwise noted on the product page.
A warranty is provided by each manufacturer to ensure that your product is free of defect in both materials and workmanship.
View Warranty Details
Didn't get what you wanted or have a problem? We've got you covered! Return any item in new, unopened condition along with its original packaging and any accessories that might have come with your product and receive a refund within 60 days of purchase.
Our customer service team can help determine the best course of action and provide you with some options in the event you're interested in a return.
Learn About Returns
Join the Pyramyd Air mailing list: Our e-mails are filled with new products, deals, sneak peeks, tips and tricks, contests and more - sign up today!
Airgun safety is no accident. You must be 18 years or older to buy any air gun or air rifle in our store.
Text JOIN to 91256 and get $10 Off Your Next $50+ Order.
* By providing your number above, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in from Pyramyd Air on 91256. Reply with birthday MM/DD/YYYY to verify legal age of 18+ in order to receive texts. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.
Customer Support
Shopping Services
Confident Shopping
By Richard
5.0 5.0
5.0 5.0
History: got my FX .25 wildcat compact/Warcat edition over 2 years ago that came with the X-barrel as standard. Installed the Superior .25 500mm barrel on 6.5.20. I live in a slightly rural subdivision so shooting over 20 yards is shooting into my neighbor's yards. My yard pest control distances are 18 & 22 yards, 35yards across the street into a drainage pond, 50 yards is across the neighbors next door lot, and 90 yards across 3 unfriendlies. With the X-barrel, '0' POA was at 18 & 22, 35 was 1 over (scope) moa, 50 was 1-1/2 moa and 90 I don't remember because I'm 74 and losing it. Seriously! I think it was a 5 to 7 over because it was a miracle 1 kill shot on a ground hog. I was flabbergasted. I'm just learning trajectory concepts. With the Superior barrel, '0' at 18, 1 under moa for 22, 35, & 50! I can't do 90 yards per the above. I could not believe my results! Even emailed Pyramyd for an explanation. (running out of typing room here, see 'Anything else...' below.)
Things I would have changed:If it hadn't been for the internet, removing and/or replacing the barrel to shroud rubber o-rings would have been a problem. There should be some kind of instruction sheet for that, and which barrel end goes where. Also saw that on the internet.
What others should know:The PA guy gave me tons of good suggestion, like getting a FX chrono and all that but never really answered my question. Then I found a piece of paper that I had written down several months prior that had a trajectory from one of TED's holdover videos where he used a .22 instead of .25, but the holdunders were almost identical. Ted saved my sanity. My only political statement of the year: please wear a mask, over your mouth AND nose. It may save you plus this old goat. Thanks for listening.