Skip to content
Skip to navigation Skip to content
Your Cart

Most Orders Over $200 Ship FREE!

Order by 3PM Central for Same Day Shipping

Earn cashback with every order! Learn more.

Rooftop Defense
  • My Account
  • Support
  • Checkout
$0.00 0
  • Guns & NFA
    • Complete Rifles
    • AR Lower Receivers
      • Stripped Lowers
      • Complete Lowers
      • Receiver Sets
    • Handguns
      • Rooftop Essentials Glocks
      • 9mm
      • .45 Auto
      • 10mm Auto
    • NFA
      • Short-Barreled Rifles
      • Suppressors
      • Suppressor Parts
      • M203
  • Mags
    • 5.56/300BLK
    • SR25/AR10
    • 6mm ARC
    • AK
    • Handgun
    • PCC & Subgun
    • Parts & Accessories
  • Ammo
  • Parts & Accessories
    • AR Lower Parts
      • Buffers & Buffer Tubes
      • Lower Parts Kits
      • Other Lower Parts
      • Pistol Grips
      • Safety Selectors
      • Springs
      • Stocks
      • Triggers
      • Trigger Guards
    • AR Uppers
      • Upper Receivers
        • — AR15/M4
        • — LMT MRP
      • Barreled Upper Receivers
      • Complete Upper Groups
    • AR Upper Parts
      • Barrels
        • — AR15/M4
        • — LMT MRP
      • Muzzle Devices
        • — 5.56 & .223
        • — 7.62 & .30
        • — Blast Diffusers
      • Bolt Carrier Groups
      • Bolts & BCG Parts
      • Charging Handles
      • Rails & Handguards
        • — Drop In
        • — MLOK
        • — 1913 Picatinny
        • — ARCA Compatible
      • Other Upper Parts
    • Accessories
      • Grips & Stops
      • Slings
      • Sling Mounts & Accessories
      • Bipods & Accessories
    • SR-25, MWS & AR10
      • MWS Barrels
      • Bolt Carrier Groups & Parts
      • Charging Handles
      • Other SR-25/MWS Parts
      • LMT MWS Uppers
      • KAC SR-25 Uppers
      • AR10 Uppers
      • AR10 Barrels
  • Lights
    • Weaponlights
    • Handheld Lights
    • Heads & Bodies
    • Switches & Accessories
    • Light Mounts
    • Batteries & Chargers
    • Battery Storage
  • Sights & Optics
    • Optics
    • LPVO & Scope Mounts
      • 30mm
      • 34mm
      • 35mm
    • Mount Accessories
      • 30mm
      • 34mm
      • 35mm
    • Red Dot Mounts & Risers
    • Iron Sights
    • IR Devices
  • Gear
    • Medical
    • Holsters
    • Belt & Range
    • Long Range & PRS
    • Storage
    • Helmets
    • Helmet Accessories
    • Hearing Protection & Comms
    • Apparel
  • Cleaning, Lube & Tools
    • Cleaning
    • Lubrication
    • Tools
    • Refinishing
  • Glock Parts
    • Gen 3
    • Gen 4
    • Gen 5
    • Gen 6
    • Slimline
    • Sights
    • MOS Optic Plates
  • HK Parts
    • USP
    • MP5 & MP5K
    • MP7
    • HK416 & MR556
    • HK417 & MR762
  • Other Gun Parts
    • Shotguns
    • Ruger RXM
    • CZ Scorpion EVO 3
    • AK
    • Tavor & X95
  • Brands
    • Brands A-D
      • Agency Arms
      • Aimpoint
      • ALG Defense
      • Allen Engineering
      • Ameriglo
      • Arisaka Defense
      • B5 Systems
      • Badger Ordnance
      • BE Meyers
      • Birchwood Casey
      • Black Hills Ammunition
      • Black River Tactical
      • Blue Force Gear
      • Bravo Company Mfg
      • Centurion Arms
      • Colt Manufacturing
      • CompMag
      • Criterion Barrels
      • Daniel Defense
      • Dead Air
    • Brands E-K
      • Edgar Sherman Design
      • EOTech
      • Esstac
      • Evolve Weapons Systems
      • Flatline Fiber Co
      • FN
      • Forward Controls Design
      • Geissele Automatics
      • Glock
      • Heckler & Koch
      • Hodge Defense
      • Hoppe’s
      • HRF Concepts
      • HUXWRX
      • Icon Defense
      • Kinetic Consulting
      • Knight’s Armament
    • Brands L-Q
      • LaRue Tactical
      • LMT Defense
      • Lucas Oil
      • LWRC
      • Magpul
      • Mec-Gar
      • Mega Arms
      • Microbest
      • Midwest Industries
      • Modlite
      • MultiTasker
      • North American Rescue
      • Noveske Rifleworks
      • Ops-Core
      • Otis Technology
      • PHLster
      • Precision Armament
      • Precision Reflex, Inc.
      • Primary Weapons Systems
      • Primatia
    • Brands R-Z
      • Radian Weapons
      • Reptilia Corp
      • Revival Defense
      • Rooftop Defense
      • Safariland
      • Scalarworks
      • Sentry Manufacturing
      • Shield Arms
      • Sig Sauer
      • SilencerCo
      • Sons of Liberty Gun Works
      • Sprinco USA
      • Surefire
      • Thyrm
      • Trijicon
      • Truglo
      • Unity Tactical
      • VLTOR
      • Wheeler Engineering
      • ZEV Technologies
  • Training
  • Support
    • Heroes Program
    • CA Order Verification
    • Sweatshop Cashback
    • About
    • Contact Us
    • Make a Return

Browse

  • My Account
  • Customer Support

Want to chat?

Contact Us

Social

  • Facebook
  • Instagram
  • YouTube
$0.00 0

All inventory is live; if it’s in-stock, it’s ready to ship!

All AR Upper Parts

Home / All AR Upper Parts

Showing 1–18 of 294 results

  • 1
  • 2
  • 3
  • 4
  • …
  • 15
  • 16
  • 17
  • →
  • Sons of Liberty Gas Tube | Pistol, Carbine, Mid & Rifle Length

    All AR Upper Parts, Other Upper Parts

    Sons of Liberty Gas Tube | Pistol, Carbine, Mid & Rifle Length
    Rated 4.85 out of 5
    $23.00 Select Options This product has multiple variants. The options may be chosen on the product page
  • Surefire Warcomp 5.56 Flash Hider, 1/2x28

    All AR Upper Parts, Muzzle Devices, 5.56 & .223 Muzzle Devices

    Surefire Warcomp 5.56 Flash Hider, 1/2×28
    Rated 5.00 out of 5
    $152.00 Add to Cart
  • HUXWRX Flash Hider QD 5.56, 1/2x28

    All AR Upper Parts, Muzzle Devices, 5.56 & .223 Muzzle Devices

    HUXWRX Flash Hider QD 5.56, 1/2×28
    Rated 5.00 out of 5
    $129.00 Add to Cart
  • Dead Air Keymo Flash Hider, 5.56, 1/2x28

    All AR Upper Parts, Muzzle Devices, 5.56 & .223 Muzzle Devices

    Dead Air Keymo Flash Hider, 5.56, 1/2×28
    Rated 4.88 out of 5
    $79.00 Add to Cart
  • LMT Firing Pin Retaining Pin for AR15/M4

    All AR Upper Parts, Bolts & BCG Parts

    LMT Firing Pin Retaining Pin for AR15/M4
    Rated 5.00 out of 5
    $3.50 Add to Cart
  • Surefire Warden Fast-Attach Blast Diffuser

    All AR Upper Parts, Muzzle Devices, Blast Diffusers, CX

    Surefire Warden Fast-Attach Blast Diffuser
    Rated 5.00 out of 5
    $296.00 Select Options This product has multiple variants. The options may be chosen on the product page
  • PRI M84 Gas Buster Charging Handle, 5.56

    All AR Upper Parts, Charging Handles

    PRI M84 Gas Buster Charging Handle, 5.56 | All Styles
    Rated 5.00 out of 5
    $89.95 – $97.45Price range: $89.95 through $97.45 Select Options This product has multiple variants. The options may be chosen on the product page
  • LMT Firing Pin for AR15/M4

    All AR Upper Parts, Bolts & BCG Parts

    LMT Firing Pin for AR15/M4
    Rated 5.00 out of 5
    $11.30 Add to Cart
  • Sprinco M4 / M16 / AR-15 Gas Rings

    All AR Upper Parts, Bolts & BCG Parts

    Sprinco M4 / M16 / AR-15 Gas Rings
    Rated 5.00 out of 5
    $2.55 – $7.40Price range: $2.55 through $7.40 Select Options This product has multiple variants. The options may be chosen on the product page
  • BCM Low Profile Gas Block with Set Screws, .625"

    All AR Upper Parts, Other Upper Parts

    BCM Low Profile Gas Block with Set Screws, .625″
    Rated 5.00 out of 5
    $44.95 Select Options
  • Knight's Armament 5.56 QDC Flash Hider, 1/2x28

    All AR Upper Parts, Muzzle Devices, 5.56 & .223 Muzzle Devices, CX, HX

    Knight’s Armament 5.56 QDC Flash Hider, 1/2×28
    Rated 5.00 out of 5
    $129.96 Add to Cart
  • Forward Controls Design Hodge Low Snag Forward Assist (LSFA)

    All AR Upper Parts, Other Upper Parts

    Forward Controls Design Hodge Low Snag Forward Assist (LSFA)
    Rated 5.00 out of 5
    $45.60 Select Options This product has multiple variants. The options may be chosen on the product page
  • Surefire Warcomp 5.56 Closed-Tine Flash Hider, 1/2x28

    All AR Upper Parts, Muzzle Devices, 5.56 & .223 Muzzle Devices

    Surefire Warcomp 5.56 Closed-Tine Flash Hider, 1/2×28
    Rated 5.00 out of 5
    $152.00 Add to Cart
  • Criterion Core 14.5" .223 Wylde Midlength Barrel, 1:8 Twist

    All AR Upper Parts, Barrels, AR15/M4 Barrels, 14.5"

    Criterion Core 14.5″ .223 Wylde Midlength Barrel, 1:8 Twist
    Rated 4.82 out of 5
    $313.49 Add to Cart
  • Criterion Core 16" .223 Wylde Midlength Barrel, 1:8 Twist

    All AR Upper Parts, Barrels, AR15/M4 Barrels, 16"

    Criterion Core 16″ .223 Wylde Midlength Barrel, 1:8 Twist
    Rated 5.00 out of 5
    $313.49 Add to Cart
  • Radian Raptor-LT Charging Handle, 5.56 | Black & FDE

    All AR Upper Parts, Charging Handles

    Radian Raptor-LT Charging Handle, 5.56 | Black & FDE
    Rated 5.00 out of 5
    $79.95 – $84.95Price range: $79.95 through $84.95 Select Options This product has multiple variants. The options may be chosen on the product page
  • Sons of Liberty Gun Works Bolt Carrier Group

    All AR Upper Parts, Bolt Carrier Groups

    Sons of Liberty Gun Works Bolt Carrier Group
    Rated 4.95 out of 5
    $199.00 Add to Cart
  • Magpul Enhanced Polymer AR-15 Ejection Port Cover (Dust Cover), Black

    All AR Upper Parts, Other Upper Parts

    Magpul Enhanced Polymer AR-15 Ejection Port Cover (Dust Cover), Black
    Rated 4.50 out of 5
    $14.20 Add to Cart

Showing 1–18 of 294 results

  • 1
  • 2
  • 3
  • 4
  • …
  • 15
  • 16
  • 17
  • →
Shop by Brand
Product categories
  • Shotgun Parts & Accessories
  • Ruger RXM
  • Cleaning, Lubrication & Tools
  • HK Parts
  • KAC Things
  • LMT Fan Favorites
  • Tavor & X95
  • Yard Sale
  • Accessories
  • All AR Upper Parts
    • Barrels
    • Bolt Carrier Groups
    • Bolts & BCG Parts
    • Charging Handles
    • Muzzle Devices
    • Other Upper Parts
    • Rails & Handguards
  • All AR Upper Receivers
  • Ammo
  • Apparel
  • AR Lower Parts
  • AK
  • Glock Parts
  • Gear
  • Guns and NFA
  • Lights
  • Magazines
  • CZ Scorpion EVO 3
  • Sights and Optics
  • SR-25, MWS & AR10
  • CX
  • HX
  • Uncategorized

STORE

  • Home
  • About
  • Support
  • Heroes Program

ACCOUNT

  • account
  • privacy policy
  • terms and conditions

FOLLOW

  • Instagram
  • Youtube
  • Facebook
  • Reddit

SIGN UP

Sign up for our mailing list to be the first to know when new deals drop!

Home of the Fastest Sweatshop in the West

© Rooftop Defense 2026. All Rights Reserved.

STORE

  • Home
  • About
  • Support
  • Heroes Program

ACCOUNT

  • account
  • privacy policy
  • terms and conditions

FOLLOW US

  • Instagram
  • Youtube
  • Facebook
  • Reddit

SIGN UP

Sign up for our mailing list to be the first to know when new deals drop!

Home of the Fastest Sweatshop in the West

© Copyright Rooftop Defense 2025. All Rights Reserved.