Trending AR-15 Parts

The most popular AR-15 parts this week, ranked by builder interest.

Most Popular AR-15 Parts This Week

These rankings update every 30 minutes based on what GunPartPicker visitors are actually clicking through to buy — not just browsing. Compare prices and stock status across all our partner merchants in one place, and use the Sort menu to switch between Today's data and the full week or to reorder by price.

Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
#1

Trigger

Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger

$278.49

Aero Precision Stripped Ar-15 Lower Receiver - Gen 2
#2

Lower Receiver

Aero Precision Stripped Ar-15 Lower Receiver - Gen 2

$89.99

Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
#3

Lower Receiver

Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom

$154.99

Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002
#4

Lower Receiver

Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002

$269.99

Superlative Arms Bleed Off Adjustable Gas Block Set Screw .750" - Titanium - Dlc Dark Finish
#5

Gas Block

Superlative Arms Bleed Off Adjustable Gas Block Set Screw .750" - Titanium - Dlc Dark Finish

$89.99

Daniel Defense Ar-15 Fixed Adjustable A1.5 Backup Rear Sight Black
#6

Rear Sight

Daniel Defense Ar-15 Fixed Adjustable A1.5 Backup Rear Sight Black

$105.00

Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
#7

Lower Receiver

Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock

$233.99

Wilson Combat Ar-15 Starburst Gunfighter Pistol Grip Black
#8

Pistol Grip

Wilson Combat Ar-15 Starburst Gunfighter Pistol Grip Black

$25.32

Bravo Company M16 Bolt Carrier Group Black
#9

Bolt Carrier Group

Bravo Company M16 Bolt Carrier Group Black

$199.00

Eotech 3x30.5mm x 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
#10

Optic

Eotech 3x30.5mm x 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN

$1173.76

Strike Industries Enhanced Ultimate Dust Cover - Capsule - Black
Popular

Dust Cover

Strike Industries Enhanced Ultimate Dust Cover - Capsule - Black

$14.99

Magpul Ar-15 Moe Stock Collapsible Mil-Spec Blk
Popular

Stock & Brace

Magpul Ar-15 Moe Stock Collapsible Mil-Spec Blk

$33.99

Bravo Company Manufacturing Mk2 Recoil Mitigation System - Mod 1 - T0
Popular

Buffer Tube Assembly

Bravo Company Manufacturing Mk2 Recoil Mitigation System - Mod 1 - T0

$109.95

Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension
Popular

Buffer Tube

Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension

$37.49

Wilson Combat Ar-15 Lower Receiver Forged
Popular

Lower Receiver

Wilson Combat Ar-15 Lower Receiver Forged

$42.50

Magpul Ar-15 Ctr Stock Collapsible Mil-Spec Blk
Popular

Stock & Brace

Magpul Ar-15 Ctr Stock Collapsible Mil-Spec Blk

$45.92

Sig Sauer Romeo 5 Gen II Red Dot, Black - SOR5101
Popular

Optic

Sig Sauer Romeo 5 Gen II Red Dot, Black - SOR5101

$109.99

Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Popular

Magazine Release

Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK

$37.95

Magpul Ar-15 Moe Enhanced Trigger Guard Fde
Popular

Trigger Guard

Magpul Ar-15 Moe Enhanced Trigger Guard Fde

$7.93

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Popular

Upper Receiver

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4

$129.00

Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers
Popular

Charging Handle

Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers

$68.99

Geissele Automatics Super Precision AR-15/M4 30mm 7075 T6 Aluminum Extended Scope Mount, Hardcoat Anodized Black - 05381B
Popular

Optic Mount

Geissele Automatics Super Precision AR-15/M4 30mm 7075 T6 Aluminum Extended Scope Mount, Hardcoat Anodized Black - 05381B

$269.61

Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Popular

Charging Handle

Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green

$154.95

Geissele Automatics Llc Single Stage Precision Trigger Flat Bow
Popular

Trigger

Geissele Automatics Llc Single Stage Precision Trigger Flat Bow

$210.99

Lmt Mars-L Ambidextrous Ar-15 Stripped Lower Receiver
Popular

Lower Receiver

Lmt Mars-L Ambidextrous Ar-15 Stripped Lower Receiver

$352.35

PMC 5.56X X-Tac XP 193, 5.56 NATO - Full Metal Jacket Boat-Tail 55 GR, Brass, Boxer, N/C, Reloadable - 1000 Round Case
Popular

5.56 NATO

PMC 5.56X X-Tac XP 193, 5.56 NATO - Full Metal Jacket Boat-Tail 55 GR, Brass, Boxer, N/C, Reloadable - 1000 Round Case

$9.98

Warne Scope Mounts Vapor MSR Mount 1" Tube Picatinny Rail - V4001M
Popular

Optic Mount

Warne Scope Mounts Vapor MSR Mount 1" Tube Picatinny Rail - V4001M

$54.36

Geissele Automatics Llc Ar-15/m16 Super Charging Handle, Ddc
Popular

Charging Handle

Geissele Automatics Llc Ar-15/m16 Super Charging Handle, Ddc

$96.46

Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger
Popular

Trigger

Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger

$273.99

Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP
Popular

Trigger

Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP

$166.81

Strike Industries Ar-15 Ultra Light Pivot / Takedown Pins - Fde
Popular

Takedown Pin

Strike Industries Ar-15 Ultra Light Pivot / Takedown Pins - Fde

$15.95

Magpul AFG-2 Angled Fore Grip - Black
Popular

Foregrip

Magpul AFG-2 Angled Fore Grip - Black

$23.99

Radian Weapons Talon Ambidextrous Safety Selector 2-Lever Kit - Radian Grey
Popular

Safety

Radian Weapons Talon Ambidextrous Safety Selector 2-Lever Kit - Radian Grey

$64.99

Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C
Popular

Buffer Spring

Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C

$19.99

PSA PA15 Complete Classic EPT A2 Lower Receiver - 7781023
Popular

Lower Receiver

PSA PA15 Complete Classic EPT A2 Lower Receiver - 7781023

$189.99

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Popular

Takedown Pin

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B

$16.38

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11
Popular

Lower Receiver

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11

$284.95

Radian Weapons Ultralight AR15 QD Endplate Black
Popular

End Plate

Radian Weapons Ultralight AR15 QD Endplate Black

$39.95

Firefield 1.5-5x32mm Illuminated Mil-Dot (SPF) Barrage Rifle Scope w/ Green Laser - FF13063
Popular

Rifle Scope

Firefield 1.5-5x32mm Illuminated Mil-Dot (SPF) Barrage Rifle Scope w/ Green Laser - FF13063

$83.86

Strike Industries Angled Vertical Grip with Cable Management - Short
Popular

Foregrip

Strike Industries Angled Vertical Grip with Cable Management - Short

$17.95

Advanced Technology Ar-15 X1 Recoil Reducing Pistol Grip
Popular

Pistol Grip

Advanced Technology Ar-15 X1 Recoil Reducing Pistol Grip

$19.33

Strike Industries Extended Bolt Catch
Popular

Bolt Catch

Strike Industries Extended Bolt Catch

$14.95

CMMG AR-15 Carbine Buffer Assembly - 55CA977
Popular

Buffer

CMMG AR-15 Carbine Buffer Assembly - 55CA977

$18.99

Real Avid Viz-Max Laser Rifle Bore Sighter - AVVMBS
Popular

Laser

Real Avid Viz-Max Laser Rifle Bore Sighter - AVVMBS

$108.99

Aero Precision Gas Tube, Pistol Length - Stainless Steel
Popular

Gas Tube

Aero Precision Gas Tube, Pistol Length - Stainless Steel

$13.78

Geissele Automatics Super Modular Rail Mk18 Ar-15 Handguard - M-Lok / Arca-Swiss - Ddc - 16"
Popular

Handguard

Geissele Automatics Super Modular Rail Mk18 Ar-15 Handguard - M-Lok / Arca-Swiss - Ddc - 16"

$450.00

Viridian Weapon Technologies HS1, Laser Handstop, Infrared Laser, Picatinny Mount, Flat Dark Earth
Popular

Foregrip

Viridian Weapon Technologies HS1, Laser Handstop, Infrared Laser, Picatinny Mount, Flat Dark Earth

$219.00

Noveske Ar-15 Takedown & Pivot Pin Set
Popular

Takedown Pin

Noveske Ar-15 Takedown & Pivot Pin Set

$11.49

Midwest Industries, Inc. Ar-15 Combat Fixed Front Sight
Popular

Front Sight

Midwest Industries, Inc. Ar-15 Combat Fixed Front Sight

$56.70

Vortex Viper PST Gen II 1-6x24 SFP VMR-2 MOA Riflescope
Popular

Rifle Scope

Vortex Viper PST Gen II 1-6x24 SFP VMR-2 MOA Riflescope

$599.00

B5 Systems Type 22 P-Grip - Black
Popular

Pistol Grip

B5 Systems Type 22 P-Grip - Black

$11.94

Odin Works Atlas 5 Compensator - 1/2x28
Popular

Muzzle Device

Odin Works Atlas 5 Compensator - 1/2x28

$84.48

Foxtrot Mike Products MIKE-9 AR9 Stripped Ambidextrous Billet Lower Receiver
Popular

Lower Receiver

Foxtrot Mike Products MIKE-9 AR9 Stripped Ambidextrous Billet Lower Receiver

$219.00

Strike Industries Collar Adjustable Gas Block
Popular

Gas Block

Strike Industries Collar Adjustable Gas Block

$90.99

Cryptic Coatings 5.56 Nato Ar-15 Bolt Carrier Group - Mystic Bronze
Popular

Bolt Carrier Group

Cryptic Coatings 5.56 Nato Ar-15 Bolt Carrier Group - Mystic Bronze

$242.25

Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD
Popular

End Plate

Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD

$39.49

Strike Industries Gridlok 416 16in Handguard Assembly in Full Duty Version Picatinny Heckler & Koch HK416 Black One Size
Popular

Handguard

Strike Industries Gridlok 416 16in Handguard Assembly in Full Duty Version Picatinny Heckler & Koch HK416 Black One Size

$374.95

Rise Armament Ar-15 Magazine Release Button - Rise Red
Popular

Magazine Release

Rise Armament Ar-15 Magazine Release Button - Rise Red

$7.97

Aero Precision M4e1 Threaded Stripped Ar-15 Upper - No Forward Assist - Anodized Black
Popular

Upper Receiver

Aero Precision M4e1 Threaded Stripped Ar-15 Upper - No Forward Assist - Anodized Black

$103.20

Triggertech Ar Diamond Trigger Flat Black
Popular

Trigger

Triggertech Ar Diamond Trigger Flat Black

$269.99

Fortis SHIFT Vertical Grip - M-LOK
Popular

Foregrip

Fortis SHIFT Vertical Grip - M-LOK

$80.70

Magpul MVG MOE Vertical Grip - Black
Popular

Foregrip

Magpul MVG MOE Vertical Grip - Black

$21.95

Midwest Industries, Inc. Ar-15 Combat Rifle Folding Sight Set
Popular

Iron Sights

Midwest Industries, Inc. Ar-15 Combat Rifle Folding Sight Set

$149.95

Radian Raptor Slim Line Ambidextrous Ar-15 Charging Handle - Black
Popular

Charging Handle

Radian Raptor Slim Line Ambidextrous Ar-15 Charging Handle - Black

$90.99

Strike Industries T-Bone Ar-15 Charging Handle for .223/5.56 - Black/FDE
Popular

Charging Handle

Strike Industries T-Bone Ar-15 Charging Handle for .223/5.56 - Black/FDE

$36.95

Sightmark LoPro Mini Light and Green Laser - Visible/IR - Black
Popular

Light

Sightmark LoPro Mini Light and Green Laser - Visible/IR - Black

$131.99

Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light with Tapeswitch
Popular

Light

Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light with Tapeswitch

$120.99

SightMark T-3 3x Magnifier With LQD Flip To Side Mount
Popular

Magnifier

SightMark T-3 3x Magnifier With LQD Flip To Side Mount

$84.48

Breek Arms Ar-15 Warhammer Mod2 Ambidextrous Charging Handle Black
Popular

Charging Handle

Breek Arms Ar-15 Warhammer Mod2 Ambidextrous Charging Handle Black

$49.95

Timber Creek Outdoors Ambidextrous Safety Selector - Black
Popular

Safety

Timber Creek Outdoors Ambidextrous Safety Selector - Black

$20.99

Fortis Super Sport Fifty Safety Selector - Red
Popular

Safety

Fortis Super Sport Fifty Safety Selector - Red

$34.97

Timney Triggers Targa Two Stage Ar-15 Trigger Long 1st Stage Straight Bow
Popular

Trigger

Timney Triggers Targa Two Stage Ar-15 Trigger Long 1st Stage Straight Bow

$182.00

B5 Systems Trigger Guard ATG-001-01
Popular

Trigger Guard

B5 Systems Trigger Guard ATG-001-01

$19.00

Spikes Tactical Ar-15 Lower - Forged Spider - Fire Safe Markings
Popular

Lower Receiver

Spikes Tactical Ar-15 Lower - Forged Spider - Fire Safe Markings

$107.10

Viridian Weapon Technologies E-Series, Red Laser, Fits Smith & Wesson Shield 9/40, Black
Popular

Laser

Viridian Weapon Technologies E-Series, Red Laser, Fits Smith & Wesson Shield 9/40, Black

$80.87

Cmmg Ar-15 Safety Selector
Popular

Safety

Cmmg Ar-15 Safety Selector

$9.00

Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length
Popular

Gas Tube

Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length

$14.40

Geissele Automatics Llc Ar-15 Premium Buffer Tube Ddc
Popular

Buffer Tube

Geissele Automatics Llc Ar-15 Premium Buffer Tube Ddc

$70.99

Phase 5 Tactical Ar-15 Ebr V3 Extended Bolt Release
Popular

Bolt Catch

Phase 5 Tactical Ar-15 Ebr V3 Extended Bolt Release

$49.99

Midwest Industries Suppressor Series M-Lok Ar-15 Handguard - 10.5"
Popular

Handguard

Midwest Industries Suppressor Series M-Lok Ar-15 Handguard - 10.5"

$154.95

Crimson Trace LS-250 Saddle Green Laser Sight for Mossberg 12 Gauge Shockwave - LS-250G
Popular

Laser

Crimson Trace LS-250 Saddle Green Laser Sight for Mossberg 12 Gauge Shockwave - LS-250G

$158.99

Surefire Scout Light Rear Cap Assembly Replacement, Tan - UE-SR07-TN
Popular

Light

Surefire Scout Light Rear Cap Assembly Replacement, Tan - UE-SR07-TN

$143.00

Radian Weapons Ar-15 Enhanced Takedown Pin Set Black
Popular

Takedown Pin

Radian Weapons Ar-15 Enhanced Takedown Pin Set Black

$32.95

Magpul MBUS Gen 3 Folding Rear Sight, FDE - MAG1167-FDE
Popular

Iron Sights

Magpul MBUS Gen 3 Folding Rear Sight, FDE - MAG1167-FDE

$37.99

Dead Air Xeno Flash Hider - 1/2x28
Popular

Muzzle Device

Dead Air Xeno Flash Hider - 1/2x28

$69.00

Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H3 - Ddc
Popular

Buffer Tube Assembly

Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H3 - Ddc

$130.35

Law Tactical AR Folding Stock Adapter Gen 3 - HK
Popular

Stock Adapter

Law Tactical AR Folding Stock Adapter Gen 3 - HK

$369.00

Magpul Moe-Sl Mid-Length Handguard, Fde
Popular

Handguard

Magpul Moe-Sl Mid-Length Handguard, Fde

$29.99

Spike's Tactical Ar-15 Upper Receiver Assembly
Popular

Upper Receiver

Spike's Tactical Ar-15 Upper Receiver Assembly

$94.70

Troy BattleSights 45 Degree Offset Folding M4 Front & Di-Optic Set Black - SSIG-45S-MDBT-00
Popular

Iron Sights

Troy BattleSights 45 Degree Offset Folding M4 Front & Di-Optic Set Black - SSIG-45S-MDBT-00

$249.49

Viridian Venta Green Dot Sight 1x22mm 3 MOA Dot
Popular

Optic

Viridian Venta Green Dot Sight 1x22mm 3 MOA Dot

$149.00

Triggertech Ar-15 Safety Black
Popular

Safety

Triggertech Ar-15 Safety Black

$54.99

Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate
Popular

Bolt Carrier Group

Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate

$131.53

EOTech G45 Magnifier, 5X, No Mount, Matte Finish, Black - G45NM
Popular

Magnifier

EOTech G45 Magnifier, 5X, No Mount, Matte Finish, Black - G45NM

$527.54

BRAVO COMPANY AR15/M16 QD Receiver End Plate (BCM-EPM4-QD)
Popular

End Plate

BRAVO COMPANY AR15/M16 QD Receiver End Plate (BCM-EPM4-QD)

$14.99

Magpul Miad Gen 1.1 Grip Kit Polymer Black
Popular

Pistol Grip

Magpul Miad Gen 1.1 Grip Kit Polymer Black

$23.99

Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
Popular

Stock & Brace

Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011

$82.00

Ballistic Advantage Ar-15 Modern Series 12.5 Carbine Barrel Gov't
Popular

Barrel

Ballistic Advantage Ar-15 Modern Series 12.5 Carbine Barrel Gov't

$107.88

Ballistic Advantage Ar-15 Mid-Length Fluted 16in Barrel Spr
Popular

Barrel

Ballistic Advantage Ar-15 Mid-Length Fluted 16in Barrel Spr

$161.39

Wilson Combat Tactical Triggerguard
Popular

Trigger Guard

Wilson Combat Tactical Triggerguard

$17.15