BC Custom
BC Custom In-House Airgun Upgrades and Reloading Accessories
BC Custom is Bullet Central's in-house manufactured brand. Everything on this page is designed, built, and tested by our team in Fargo, North Dakota. You'll find Airgun performance upgrades and reloading accessories. In stock and ready to ship today.
What Makes BC Custom Different
BC Custom exists because we got tired of waiting on the parts we wanted. We run a precision shooting shop, we compete, and we reload, so when a part didn't exist, or the lead time was six months, we built it ourselves. That's where the brand started and that's still how it works. If a component earns a spot in our catalog, one of our team members built it, shot it, and signed off on it. The Airgun upgrades came out of what competitive airgun shooters actually asked for at the counter. The reloading accessories are the pieces we use on our own bench every day.
Product Lines at a Glance
Airgun Performance Upgrades. The deepest section of the catalog. Built for shooters who want more power, better shot-to-shot consistency, and a cleaner feel. Includes the Hyperbloc100 Valve Housing Upgrade, Carbon Fiber Shroud and Tensioner Kits (500, 600, 700, 800 mm), A.I.R. Magazines in .177, .22, .30, and .35, Tungsten Hammers in 223 gr, 254 gr, and 409 gr, the Short Throw Lever Assembly, Precision Probes, Bull Barrel Weights, the LCS Barrel Sleeve, Flat and Pinpoint Trigger Shoes, and full Maverick and Premium Airgun upgrade packages.
Reloading and Bench Accessories. The pieces we use on our own bench. Acrylic Powder Drop Tubes, a Billet Aluminum Powder Funnel, Aluminum Primer Trays, and the Coaxial Rest Fine Adjuster for Forster co-ax press owners.
Random Shots. Other accessories, parts, and tools made by BC Custom: magnifying lights, barrel sleeves, and barrel adapters.
Which BC Custom Product Is Right for You?
Airgun shooter. The Hyperbloc100 Valve Housing Upgrade and Tungsten Hammers are the two upgrades that change the most on the target. Add a Carbon Fiber Shroud and Tensioner Kit if you shoot heavy slugs at distance, match the kit length to your barrel (500, 600, 700, or 800 mm), and verify the caliber. Precision Probes, A.I.R. Magazines, and the Short Throw Lever are quality-of-life upgrades you'll notice every string.
Reloader chasing smaller groups. The Acrylic Powder Drop Tubes and Billet Powder Funnel cut static and charge weight variation. The Coaxial Rest Fine Adjuster is for Forster co-ax press owners who want finer depth control.
Why Buy BC Custom From Bullet Central?
BC Custom is our brand. You're buying direct from the shop that designs it, builds it, and stands behind it. That means:
- No middleman on warranty or support. If something isn't right, you're talking to the people who made it.
- Real stock visibility. When the site says in stock, it means the part is on our shelf, not in a container somewhere.
- Install and setup support. Setup guides and videos for the Short Throw Lever, Shroud and Tensioner Kit, and Tungsten Hammer installs live on Tech Central.
- Fargo-based fulfillment. Orders ship from Fargo, ND.
If you're not sure which upgrade or reloading accessory is right for your setup, contact us before ordering. We'll help you get the right part the first time.
Frequently Asked Questions
Who makes BC Custom products?
BC Custom is manufactured and assembled in-house at Bullet Central in Fargo, North Dakota. Every product is designed, built, and tested by our team before it earns a spot in the catalog.
What's the difference between the tungsten hammer weights (223, 254, 409 gr)?
Heavier hammers deliver more energy to the valve, which raises velocity on heavy slugs. The 223 gr is a small step up from the stock FX hammer. The 254 gr and 409 gr are for shooters running heavier slugs in the .25, .30, or .35 caliber FX Impact M3, typically paired with a longer barrel (700 or 800 mm) and the Power Block or Hyperbloc100 upgrade. Pellet shooters at stock power don't usually benefit from the heaviest hammers.
Does the Carbon Fiber Shroud and Tensioner Kit fit any FX Impact?
Match the kit length to your barrel (500, 600, 700, or 800 mm) and verify caliber. The kit tensions the barrel and reduces harmonics, which shows up most at distance with heavy slugs. Installation instructions are on Tech Central.
Can I install the Short Throw Lever myself?
Yes. The full Short Throw Lever installation manual is on Tech Central. Most shooters install it in under 30 minutes with the included hardware.
Can you make a custom part on request?
If you need something we don't currently list, contact us or visit our help center. It may be something we can add to the BC Custom product line in the future.
Become a Dealer
Run a gun shop, airgun retailer, or precision shooting retail outlet? BC Custom products are available to qualified dealers. Stock our Airgun upgrades and reloading accessories with direct factory support from Fargo.
Resources
- Contact Us
- Tech Central (install guides and videos)
- BC Custom Short Throw Lever Manual (PDF)
- Bullet Central Blog
- Bullet Central Forum
- Product
- Qty in Cart
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- Price
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BC Custom - Hyperbloc100 and Valve Housing Upgrade for FX Impact M3/M4, Factory Second
BC Custom
$279.20Upgrade your FX Impact M3 or M4 with this Hyperbloc100 and valve housing upgrade, offered here as a factory second. Designed as a precision-fit aluminum upgrade with a black anodized finish, this kit...APBC8078$279.20 -
BC Custom - Muzzle Thread Adapter & Cap Kit - 1/2-28 to 5/8-24, .84 OD Cap
BC Custom
$74.99Upgrade your firearm setup with the BC Custom Muzzle Thread Adapter & Cap Kit. This versatile kit allows you to easily convert 1/2-28 threads to 5/8-24, offering more options for muzzle devices...RPBC0012$74.99 -
BC Custom - Muzzle Thread Cap 5/8x24 - .84in Outer Diameter
BC Custom
$39.99Enhance your firearm setup with the BC Custom Muzzle Thread Cap, designed for a secure and seamless fit on barrels featuring 5/8x24 threads. This precisely crafted cap offers a .84 inch outer...RPBC0011$39.99 -
BC Custom - Muzzle Adapter 1/2x28 to 5/8x24
BC Custom
$45.99Upgrade your firearm setup with the BC Custom - Muzzle Adapter 1/2x28 to 5/8x24. This precision-machined adapter allows you to convert your muzzle threads from 1/2x28 to 5/8x24, providing versatility...RPBC0010$45.99 -
Out of stock
BC Custom - Hyperbloc100 and Valve Housing Upgrade for FX Impact M3/M4
BC Custom
$349.00Upgrade your FX Impact M3 or M4 with the BC Custom Hyperbloc100 and Valve Housing Upgrade, a precision-fit performance kit designed to enhance reliability and overall shooting efficiency. Built for...APBC0078$349.00 -
BC Custom Rifle - 6.5mm x 47 Lapua PRS Rifle (Used)
BC Custom
$5,000.00BC Custom Rifle - 6.5mm x 47 Lapua PRS Rifle (Used) Experience precision shooting with this BC Custom Rifle chambered in 6.5mm x 47 Lapua. Designed for accuracy and performance, this pre-owned PRS...FFBC9999$5,000.00 -
BC Custom - GRS Tikka T3x Lite, 308 Win
BC Custom
MSRP: $2,050.00$1,800.00BC Custom - GRS Tikka T3x Lite, 308 Win.Ultimate Precision and Durability for Serious HuntersWhen it comes to high-performance hunting rifles, the BC Custom - GRS Tikka T3x Lite, 308 Win. stands out...FFBC0011MSRP: $2,050.00$1,800.00 -
Bullet Central - Action Wrench, Rear Entry, BAT Machine, 2 Lug, Neuvo
BC Custom
$95.95The Bullet Central Action Wrench, Rear Entry, BAT Machine, 2 Lug, Neuvo is engineered for precision and durability. Designed specifically for rear entry applications, this action wrench allows you...TOBC0008$95.95 -
Random Shots - USED/300 Rounds - Bullet Central Prefit Barrel - Bartlein, SS, 6mm GT, B#11 Medium Palma, 8 twist, 22" Finish, 5R, 5/8-24 Brake Tenon for BAT Igniter Actions
BC Custom
$550.00Random Shots - USED/300 Rounds - Bullet Central Prefit BarrelBartlein, Stainless Steel, 6mm GT, B#11 Medium Palma, 8 Twist, 22" Finish, 5R, 5/8-24 Brake Tenon for BAT Igniter ActionsRandom Shots...BCRS0001$550.00 -
BC Custom - Bull Barrel Weight, FX Impact M3, 500mm
BC Custom
$190.00BC Custom - Bull Barrel Weight for FX-ImpactEnhance Your Shooting Experience with Precision and StabilityIntroducing the BC Custom Bull Barrel Weight, designed specifically for the FX-Impact...ABBC0089$190.00 -
Out of stock
BC Custom - Bull Barrel Weight, FX Impact M3, 600mm
BC Custom
$210.00BC Custom - Bull Barrel Weight for FX-ImpactEnhance Your Shooting Experience with Precision and StabilityIntroducing the BC Custom Bull Barrel Weight, designed specifically for the FX-Impact...ABBC0088$210.00 -
Out of stock
BC Custom - Bull Barrel Weight, FX Impact M3, 700mm
BC Custom
$230.00BC Custom - Bull Barrel Weight for FX-ImpactEnhance Your Shooting Experience with Precision and StabilityIntroducing the BC Custom Bull Barrel Weight, designed specifically for the FX-Impact...ABBC0087$230.00