Skip to main content
PetLawn & GardenTruck & AutomotiveClothingPoultryHeating & CoolingHorseSporting GoodsOutdoor Power EquipmentFencing & GatesLivestockOutdoor LivingPet & Animal PharmacyToolsHome ImprovementFarm & RanchBoots & ShoesTrailers & TowingHome Decor & FurnitureWild Birds & WildlifeToysGift CardsServices Propane RefillTrailer RentalGarden CenterFeed CenterSame Day DeliveryPetVet ClinicPet WashGrooming at PetsenseDog Training at PetsenseTractor Supply RxPet InsuranceWag!

"Savings and Offers"

Weekly AdSaleClearance

"More Options"

Weekly AdWhat's NewTractor Supply AppEarn Rewards with Neighbor's ClubHometown HeroesLife Out Here BlogTSC Exclusive BrandsTop BrandsClearance ItemsBattery FinderOutdoor Power Equipment Parts FinderHitch Finder

Spend $49.99 to unlock Free Delivery on most orders

|
Learn More
Order statusTSC Credit CardsWhat’s newPetsenseWeekly Ad
​

Sign In / Enroll

Get rewarded!

​
Menu

Search

Home

Sign In

Cart
0.0
(0)
0.0 out of 5 stars.
A woman outside with a dog
A woman outside with a dog
  1. Home
  2. /
  3. Sporting Goods
  4. /
  5. Shooting
  6. /
  7. Shooting Accessories & Parts
  8. /
  9. Gun Parts
  10. /

  11. American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride

  1. Home
  2. /
  4. /
  5. Gun Parts

American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride

Shop all American Precision Arms

  • New Arrival

American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride

Item # 611460499

American Precision Arms American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride
American Precision Arms American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride
$244.99
or
or

Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Shop all American Precision Arms

  • New Arrival

American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride

Item # 611460499

American Precision Arms American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride
American Precision Arms American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Nitride

$244.99
or
or
financeCard Logo
$41/mo.†  suggested payments with 6 Months Financing or earn $12 in Rewards+ on this purchase.

This item is available online only

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.

​
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

The new calibrated U.R.P tunable top ports have been designed for maximum adjustment making the Gen 4 line of brakes the flattest shooting brakes available hands down. By testing port size, location, and how the gas feeds into them, we have been able to make these tunable top ports capable of generating zero vertical movement.

  • New calibrated U.R.P tunable top ports have been designed for maximum adjustment.
  • These ports make the Gen 4 line of brakes the flattest shooting brakes available.
  • Testing focused on:
  • port size
  • port location
  • gas feed into the ports
  • The tunable top ports can generate zero vertical movement.
  • Caliber: 6.5mm
  • Diameter: 1.10"
  • Finish: Nitride
  • Length: 3.30"
  • Thread Pattern: 5/8"x24
  • Weight: 6.40 oz
BrandAmerican Precision Arms
Country of OriginMade in USA
Ammunition CapacityN/A
Gun CompatibilityRifles
Caliber6.5mm
Gun Part TypeBrakes
Product Weight6.40 oz.
Manufacturer Part NumberG4F5865N
No questions have been asked about this product.

No questions have been asked about this product.

Q&As

No questions have been asked about this product.

No questions have been asked about this product.

Similar Items

  1. American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Stainless
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Stainless
  2. American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 30 Cal, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Stainless
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 30 Cal, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in.D, Stainless

    $244.99
  3. American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in. Diameter, Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in. Diameter, Nitride

    $244.99
  4. American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in. Diameter, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Fat Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 3.30 in. OAL, 1.10 in. Diameter, Steel

    $244.99
  5. American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Nitride

    $232.99
  6. American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Stainless
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6.5mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Stainless

    $232.99
  7. American Precision Arms Gen 4 Little Bastard Self Timing Brake, 30 Cal, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Little Bastard Self Timing Brake, 30 Cal, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Nitride
  8. American Precision Arms Gen 2 Fat Bastard Self Timing Brake for Rifles, 338 Cal, 5/8 in. x 24 Thread, 3.30 in. OAL, G2F5838S
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 2 Fat Bastard Self Timing Brake for Rifles, 338 Cal, 5/8 in. x 24 Thread, 3.30 in. OAL, G2F5838S

    $209.99
  9. American Precision Arms Gen 2 Fat Bastard Self Timing Brake for Rifles, 338 Cal, 5/8 in. x 24 Thread, 3.30 in. OAL, G2F5838N
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 2 Fat Bastard Self Timing Brake for Rifles, 338 Cal, 5/8 in. x 24 Thread, 3.30 in. OAL, G2F5838N

    $209.99
  10. American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Stainless
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Stainless

    $232.99
  11. American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in. Diameter, Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Little Bastard Self Timing Brake, 6mm, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in. Diameter, Nitride

    $232.99
  12. American Precision Arms Gen 4 Little Bastard Self Timing Brake, 30 Cal, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Stainless
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 4 Little Bastard Self Timing Brake, 30 Cal, 5/8 in. x 24 Thread, 2.70 in. OAL, 1 in.D, Stainless

    $232.99

Items You May Like

  1. AmeriGlo Optic Compatible Sight Set for Glock, XL Tall, Green Tritium LumiGreen Outline Front, Green Tritium White Outline Rear
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    AmeriGlo Optic Compatible Sight Set for Glock, XL Tall, Green Tritium LumiGreen Outline Front, Green Tritium White Outline Rear

    $87.99
  2. American Precision Arms Gen 2 Micro Bastard Self Timing Brake for AR/Hunting Rifles, 30 Cal, 1/2 in. x 28 Thread, G2M1230S
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    American Precision Arms Gen 2 Micro Bastard Self Timing Brake for AR/Hunting Rifles, 30 Cal, 1/2 in. x 28 Thread, G2M1230S

    $181.99
  3. Century 30 Round 9mm Luger Magazine for Century Arms AP5, Black, Polymer
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Century 30 Round 9mm Luger Magazine for Arms AP5, Black, Polymer

    $74.99
  4. Huxwrx Piston, 1/2 in. x 28 Thread, Steel, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Huxwrx Piston, 1/2 in. x 28 Thread, Steel, Black Nitride

    $72.99
  5. TacFire AR Build Kit for AR-Platform, 300 Blackout, 1/2 in. x 28 Thread, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    TacFire AR Build Kit for AR-Platform, 300 Blackout, 1/2 in. x 28 Thread, Black Nitride

    $379.99
  6. Walther Arms 10 Round 9mm Luger Magazine for Walther PDP, Black, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Walther Arms 10 Round 9mm Luger Magazine for Walther PDP, Black, Steel

    $43.99
  7. Strike Industries Pin Kit for Glock, Black Nitride, Aluminum/Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Strike Industries Pin Kit for Glock, Black Nitride, Aluminum/Steel

    $9.99
  8. Shield Arms Magazine Extension for Shield Arms M&P 2.0, 5 Round Capacity, Red Anodized, Aluminum
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Shield Arms Magazine Extension for M&P 2.0, 5 Round Capacity, Red Anodized, Aluminum

    $39.99
  9. Dead Air Wrench Kit for RXD22TI
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air Wrench Kit for RXD22TI

    $33.99
  10. DPMS Panther Arms Charging Handle, Black, Aluminum
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    DPMS Panther Arms Charging Handle, Black, Aluminum
  11. Christensen Arms Bottom Picatinny Rail, 4 in., Black Anodized
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Christensen Arms Bottom Picatinny Rail, 4 in., Black Anodized

    $26.99
  12. Kahr Arms 10 Round 9mm Luger Magazine for Kahr X9, Stainless Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Kahr Arms 10 Round 9mm Luger Magazine for Kahr X9, Stainless Steel

    $31.99

Customers Also Bought

  1. Yankee Hill sRx QD Mini Muzzle Brake for sRx Adapters, 9mm Luger, 5/8 in. x 24 Thread, 1.10 in. OAL, 9.375 in.D, Black, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Yankee Hill sRx QD Mini Muzzle Brake for sRx Adapters, 9mm Luger, 5/8 in. x 24 Thread, 1.10 in. OAL, 9.375 in.D, Black, Steel

    $84.99
  2. Breek Arms Echo Single Port Plan B Muzzle Brake, 30 Cal, 5/8 in. x 24 Thread, Black, Nitride, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Breek Arms Echo Single Port Plan B Muzzle Brake, 30 Cal, 5/8 in. x 24 Thread, Black, Nitride, Steel

    $66.99
  3. Breek Arms Echo Single Port Muzzle Brake for Breek-LOK 3QD, 30 Cal, 5/8 in. x 24 Thread, Black, Nitride, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Breek Arms Echo Single Port Muzzle Brake for Breek-LOK 3QD, 30 Cal, 5/8 in. x 24 Thread, Black, Nitride, Steel

    $64.99
  4. Faxon Firearms EXOS-543 Compensator for Gen 4, 9mm, 1/2 in. x 28 Thread, 1.10 in. OAL, Black, Anodized, Aluminum
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Faxon Firearms EXOS-543 Compensator for Gen 4, 9mm, 1/2 in. x 28 Thread, 1.10 in. OAL, Black, Anodized, Aluminum

    $84.99
  5. Christensen Arms Side-Baffle Muzzle Brake, 30 Cal (.920 in. D Bull barrel), 5/8 in. x 24 Thread, Titanium, Natural
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Christensen Arms Side-Baffle Muzzle Brake, 30 Cal (.920 in. D Bull barrel), 5/8 in. x 24 Thread, Titanium, Natural
  6. Breek Arms Breek LOK 3QD Gemini Dual-Port Muzzle Brake, 30 Cal, 5/8 in. x 24 Thread, Black, Nitride, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Breek Arms Breek LOK 3QD Gemini Dual-Port Muzzle Brake, 30 Cal, 5/8 in. x 24 Thread, Black, Nitride, Steel

    $64.99
  7. Spikes Barking Spider2 Muzzle Brake, 30 Cal, 5/8 in. x 24 Thread, 3.75 in. OAL, 1.40 in.D, Black, Nitride, 4140 Chromoly Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Spikes Barking Spider2 Muzzle Brake, 30 Cal, 5/8 in. x 24 Thread, 3.75 in. OAL, 1.40 in.D, Black, Nitride, 4140 Chromoly Steel

    $121.99
  8. Breek Arms Echo Single Port Plan B Muzzle Brake, 223 Cal/5.56mm, 1/2 in. x 28 Thread, Black, Nitride, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Breek Arms Echo Single Port Plan B Muzzle Brake, 223 Cal/5.56mm, 1/2 in. x 28 Thread, Black, Nitride, Steel

    $66.99
  9. Breek Arms Echo Single Port Muzzle Brake for Breek-LOK 3QD, 223 Cal/5.56mm, 1/2 in. x 28 Thread, Black, Nitride, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Breek Arms Echo Single Port Muzzle Brake for Breek-LOK 3QD, 223 Cal/5.56mm, 1/2 in. x 28 Thread, Black, Nitride, Steel

    $64.99
  10. Breek Arms Breek LOK 3QD Gemini Dual-Port Muzzle Brake, 223 Cal/5.56mm, 1/2 in. x 28 Thread, Black, Nitride, Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Breek Arms Breek LOK 3QD Gemini Dual-Port Muzzle Brake, 223 Cal/5.56mm, 1/2 in. x 28 Thread, Black, Nitride, Steel

    $64.99
  11. Angstadt Arms Ultra Light Handguard for AR-15, M-LOK Style, Picatinny Rail, 5.50 in. OAL, Includes Hardware, Aluminum, Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Angstadt Arms Ultra Light Handguard for AR-15, M-LOK Style, Picatinny Rail, 5.50 in. OAL, Includes Hardware, Aluminum, Black
  12. Shield Arms Magazine Extension for Shield Arms M&P 2.0, 5 Round Capacity, Black Anodized, Aluminum
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Shield Arms Magazine Extension for M&P 2.0, 5 Round Capacity, Black Anodized, Aluminum

    $39.99

Reviews

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Be the first to review this product
Get the top deals, latest trends and more
Sign up for emails from Tractor Supply today.
First Name*
Last Name*
Email*

Customer Support

  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  

    (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

About Us

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

Work With Us

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

Neighbor's Club

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

Credit Center

  • TSC Credit Card

  • Klarna

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More
  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

  • TSC Credit Card

  • Klarna

Connect & Share with the Tractor Supply Community.

Shop on the go with the Tractor Supply App

Learn More
  • Privacy policy
  • Your Privacy Choices
  • Terms and Conditions
  • California Transparency Act
  • Legal Notices
  • Accessibility
  • Responsible Disclosure Statement
  • Surprise (Balance) Medical Billing Disclosure
  • Transparency in Coverage
  • Human Rights Policy
  • Vendor Code of Conduct
  • California Notice of Collection
  • Privacy Requests

© 2026, Tractor Supply Co. All Rights Reserved.