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. Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy

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

Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy

Shop all Dead Air

  • New Arrival

Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy

Item # 609326199

Dead Air Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy
Dead Air Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy
$88.99

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

Sign in or Join Now

Shop all Dead Air

  • New Arrival

Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy

Item # 609326199

Dead Air Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy
Dead Air Dead Air KeyMicro Brake Muzzle Brake, 9mm, 1/2 in. x 36 Thread, Black Nitride, 4140 HT Alloy

$88.99
financeCard Logo
New Cardmembers earn a $20 Reward‡ with qualifying purchase of $20 or more plus earn 5% in Rewards+ on this purchase. Valid through 8/9/26.

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 KeyMicro Brake is a short, lightweight single port muzzle brake suited for a variety of platforms. Designed for use with the KeyMicro Adapter, it functions as a minimalist brake on its own. Pair them together for the ultimate mounting platform. This is the same technology found in the industry-best KeyMo system. The KeyMicro muzzle devices are also compatible with the KeyMo Adapter.

  • KeyMicro Brake is a short, lightweight single-port muzzle brake
  • Suitable for a variety of platforms
  • Designed to be used with the KeyMicro Adapter
  • Functions as a minimalist brake on its own
  • Pairing KeyMicro Brake with KeyMicro Adapter creates the best mounting platform
  • Uses the same technology as the industry-best KeyMo system
  • KeyMicro muzzle devices are compatible with the KeyMo Adapter
  • Caliber: 9mm
  • Finish: Black Nitride
  • Material: Steel
  • Thread Pattern: 1/2"x36
  • Weight: 3.41 oz
BrandDead Air
Country of OriginMade in USA
Ammunition CapacityN/A
CompatibilityKeyMo Adapter
Caliber9mm
Gun Part TypeBrakes
Primary ColorBlack
Product Weight3.41 oz.
Manufacturer Part NumberDA110
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. Dead Air KeyMicro Brake Flash Hider, 9mm, 1/2 in. x 28 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMicro Brake Flash Hider, 9mm, 1/2 in. x 28 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  2. Dead Air KeyMicro Brake Flash Hider, 9mm, 5/8 in. x 24 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMicro Brake Flash Hider, 9mm, 5/8 in. x 24 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  3. Dead Air KeyMicro Brake Flash Hider, 5/8 in. x 24 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMicro Brake Flash Hider, 5/8 in. x 24 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  4. Dead Air Xeno P-Series Wee Brake, 9mm, 1/2 in. x 28 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air Xeno P-Series Wee Brake, 9mm, 1/2 in. x 28 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  5. Dead Air KeyMo Muzzle Brake, 338 Cal, M18X1.5 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMo Muzzle Brake, 338 Cal, M18X1.5 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  6. Dead Air KeyMo Muzzle Brake, 338 Cal, M18X1 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMo Muzzle Brake, 338 Cal, M18X1 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  7. Dead Air KeyMo Muzzle Brake, 338 Cal, 3/4 in. x 24 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMo Muzzle Brake, 338 Cal, 3/4 in. x 24 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  8. Dead Air Xeno P-Series Wee Brake, 9mm, 5/8 in. x 24 Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air Xeno P-Series Wee Brake, 9mm, 5/8 in. x 24 Thread, Black Nitride, 4140 HT Alloy

    $88.99
  9. Dead Air KeyMicro Brake Muzzle Brake for Sandman Series Suppressors, KeyMicro Adapter, KeyMo Adapters, 30 Cal, 5/8 in. x 24
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMicro Brake Muzzle Brake for Sandman Series Suppressors, KeyMicro Adapter, KeyMo Adapters, 30 Cal, 5/8 in. x 24

    $88.99
  10. Dead Air Xeno Omni Brake, 30 Cal, M14-1RH Thread, Black Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air Xeno Omni Brake, 30 Cal, M14-1RH Thread, Black Nitride, 4140 HT Alloy

    $88.99
  11. Dead Air Xeno Muzzle Brake, 1/2 in. x 28 Thread, Black, Nitride, 4140 Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air Xeno Muzzle Brake, 1/2 in. x 28 Thread, Black, Nitride, 4140 Steel

    $88.99
  12. Dead Air Xeno 3-Prong Flash Hider, 9mm, 1/2 in. x 28 Thread, 1.96 in. OAL, Black, Nitride, 4140 HT Alloy
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air Xeno 3-Prong Flash Hider, 9mm, 1/2 in. x 28 Thread, 1.96 in. OAL, Black, Nitride, 4140 HT Alloy

    $88.99

Items You May Like

  1. Dead Air 45 Cal Xeno Mount, 11/16 in. x 24 Thread, 4140 HT Alloy Steel, Nitride Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air 45 Cal Xeno Mount, 11/16 in. x 24 Thread, 4140 HT Alloy Steel, Nitride Black

    $88.99
  2. Dead Air Legacy Xeno Adapter, 4140 HT Alloy Steel, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air Legacy Xeno Adapter, 4140 HT Alloy Steel, Black Nitride

    $138.99
  3. Dead Air HUB Direct Thread Mount, 3/4 in. x 24 Thread, 4140 HT Alloy Steel, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air HUB Direct Thread Mount, 3/4 in. x 24 Thread, 4140 HT Alloy Steel, Black Nitride

    $88.99
  4. Dead Air 45 Cal Xeno Mount, .578 in. x 28 Thread, 4140 HT Alloy Steel, Nitride Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air 45 Cal Xeno Mount, .578 in. x 28 Thread, 4140 HT Alloy Steel, Nitride Black

    $88.99
  5. Dead Air HUB Direct Thread Mount, M18X1 Thread, 4140 HT Alloy Steel, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air HUB Direct Thread Mount, M18X1 Thread, 4140 HT Alloy Steel, Black Nitride

    $88.99
  6. Dead Air 30 Cal Sandman E-Brake, 4140 HT Alloy Steel, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air 30 Cal Sandman E-Brake, 4140 HT Alloy Steel, Black Nitride

    $128.99
  7. Dead Air HUB Direct Thread Mount, 11/16 in. x 24 Thread, 4140 HT Alloy Steel, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air HUB Direct Thread Mount, 11/16 in. x 24 Thread, 4140 HT Alloy Steel, Black Nitride

    $88.99
  8. Dead Air KeyMo Muzzle Brake, 45 Cal, 5/8 in. x 24 Thread, Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMo Muzzle Brake, 45 Cal, 5/8 in. x 24 Thread, Black

    $88.99
  9. Dead Air HUB Direct Thread Mount, M18X1.5 Thread, 4140 HT Alloy Steel, Black Nitride
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air HUB Direct Thread Mount, M18X1.5 Thread, 4140 HT Alloy Steel, Black Nitride

    $88.99
  10. Dead Air KeyMo Muzzle Brake, 45 Cal, 5/8 in. x 32 Thread, Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air KeyMo Muzzle Brake, 45 Cal, 5/8 in. x 32 Thread, Black

    $88.99
  11. Dead Air 9mm Xeno Xero Taper Mount, 1/2 in. x 28 Thread, 4140 HT Alloy Steel
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air 9mm Xeno Xero Taper Mount, 1/2 in. x 28 Thread, 4140 HT Alloy Steel

    $88.99
  12. Dead Air HUB Direct Thread Mount, 1/2 in. x 28 Thread, 4140 HT Alloy Steel, Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Dead Air HUB Direct Thread Mount, 1/2 in. x 28 Thread, 4140 HT Alloy Steel, Black

    $88.99

Customers Also Bought

  1. Winchester Safes 26 Long Gun 18.4 cu. ft. Electronic Lock Gun Safe, 45 Min. Fire Rating, Slate
    4.6 out of 5 stars with 8111 reviews
    4.6 (8111)

    Winchester Safes 26 Long Gun 18.4 cu. ft. Electronic Lock Gun Safe, 45 Min. Fire Rating, Slate

    $549.99
    Was $699.99Save $150.00
  2. Peakform 6 ft. Peakform White Fold In Half Outdoor Table
    4.4 out of 5 stars with 482 reviews
    4.4 (482)

    Peakform 6 ft. White Fold In Half Outdoor Table

    $59.99
  3. Blackstone Limited Edition 28 in. Patriotic Griddle with Spatulas and Cover
    4.7 out of 5 stars with 5661 reviews
    4.7 (5661)

    Blackstone Limited Edition 28 in. Patriotic Griddle with Spatulas and Cover

    $399.99
  4. Blackstone 2472 36 in. Omnivore Griddle
    4.5 out of 5 stars with 122 reviews
    4.5 (122)

    Blackstone 2472 36 in. Omnivore Griddle

    $399.99
  5. Field & Stream 3-Person Habitat 5 Hunting Blind, 75 x 72 x 85in.
    4.2 out of 5 stars with 191 reviews
    4.2 (191)

    Field & Stream 3-Person Habitat 5 Hunting Blind, 75 x 72 x 85in.

    $599.99
  6. Winchester Safes 48 Long Gun 27.8 cu. ft. Electronic Lock Gun Safe, 45 min. Fire Rating, GunStiXX Included, Slate
    4.5 out of 5 stars with 227 reviews
    4.5 (227)

    Winchester Safes 48 Long Gun 27.8 cu. ft. Electronic Lock Gun Safe, 45 min. Fire Rating, GunStiXX Included, Slate

    $699.99
    Was $999.99Save $300.00
  7. Winchester Safes 36 Long Gun 22.5 cu. ft. Electronic Lock Gun Safe, 45 Min. Fire Rating, Slate
    4.5 out of 5 stars with 3584 reviews
    4.5 (3584)

    Winchester Safes 36 Long Gun 22.5 cu. ft. Electronic Lock Gun Safe, 45 Min. Fire Rating, Slate

    $799.99
  8. Pit Boss 1000D3 Wood Pellet Grill and Smoker, Black
    4.6 out of 5 stars with 621 reviews
    4.6 (621)

    Pit Boss 1000D3 Wood Pellet Grill and Smoker, Black

    $549.99
  9. Even Embers 4-Burner Propane Gas Grill, Black/Silver
    4.3 out of 5 stars with 154 reviews
    4.3 (154)

    Even Embers 4-Burner Propane Gas Grill, Black/Silver

    $219.99
    Was $249.99Save $30.00
  10. Lifetime 10 ft. Cruze Sit Inside Kayak with Paddle, Sunset Fusion
    4.7 out of 5 stars with 169 reviews
    4.7 (169)

    Lifetime 10 ft. Cruze Sit Inside Kayak with Paddle, Sunset Fusion

    $189.99
    Was $229.99Save $40.00
  11. Winchester Safes 20 Long Gun 14.2 cu. ft. Electronic Lock Gun Safe, 30 Min. Fire Rating, Black
    4.5 out of 5 stars with 3578 reviews
    4.5 (3578)

    Winchester Safes 20 Long Gun 14.2 cu. ft. Electronic Lock Gun Safe, 30 Min. Fire Rating, Black

    $449.99
    Was $549.99Save $100.00
  12. Lifetime 8 ft. 5 in. Hydros Sit-on-Top Kayak with Paddle, Glacier Blue
    4.7 out of 5 stars with 202 reviews
    4.7 (202)

    Lifetime 8 ft. 5 in. Hydros Sit-on-Top Kayak with Paddle, Glacier Blue

    $209.99

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.