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.

Wilson Combat Ar-15 Lower Receiver Forged
#1

Lower Receiver

Wilson Combat Ar-15 Lower Receiver Forged

$42.50

Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom
#2

Lower Receiver

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

$154.99

Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
#3

Trigger

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

$280.49

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
#4

Takedown Pin

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

$16.38

Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
#5

Magazine Release

Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK

$37.95

Radian Raptor Slim Line Ambidextrous Ar-15 Charging Handle - Black
#6

Charging Handle

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

$90.99

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

Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16"
#8

Upper Receiver

Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16"

$880.95

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11
#9

Lower Receiver

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

$284.95

Wilson Combat Ar-15 Starburst Gunfighter Pistol Grip Black
#10

Pistol Grip

Wilson Combat Ar-15 Starburst Gunfighter Pistol Grip Black

$25.32

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

Trigger

Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger

$273.99

Aero Precision M4e1 Stripped Ar-15 Lower Receiver - Fde Cerakote
Popular

Lower Receiver

Aero Precision M4e1 Stripped Ar-15 Lower Receiver - Fde Cerakote

$142.99

Bravo Company M16 Bolt Carrier Group Black
Popular

Bolt Carrier Group

Bravo Company M16 Bolt Carrier Group Black

$211.26

Rise Armament Super Sporting Ar15/10 Single Stage Trigger - Flat - Dtom Special Edition
Popular

Trigger

Rise Armament Super Sporting Ar15/10 Single Stage Trigger - Flat - Dtom Special Edition

$97.50

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

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

Optic

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

$1219.50

Geissele Automatics Super 42 Braided Buffer Spring and H3 Buffer
Popular

Buffer

Geissele Automatics Super 42 Braided Buffer Spring and H3 Buffer

$108.00

Strike Industries End Plate and Anti-Rotate Castle Nut for Receivers, Red - SI-AR-UL-MFEP&ACN-RED
Popular

End Plate

Strike Industries End Plate and Anti-Rotate Castle Nut for Receivers, Red - SI-AR-UL-MFEP&ACN-RED

$35.95

Magpul Ar-15 Moe Sl-K Stock Collapsible Mil-Spec Fde
Popular

Stock & Brace

Magpul Ar-15 Moe Sl-K Stock Collapsible Mil-Spec Fde

$35.03

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

Magazine Release

Rise Armament Ar-15 Magazine Release Button - Rise Red

$7.97

Strike Industries Cobra Billet Aluminum Trigger Guard - Red
Popular

Trigger Guard

Strike Industries Cobra Billet Aluminum Trigger Guard - Red

$27.95

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

Timber Creek Outdoors Ambidextrous Safety Selector - Black
Popular

Safety

Timber Creek Outdoors Ambidextrous Safety Selector - Black

$20.99

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

Lower Receiver

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

$269.99

SilencerCo Velos LBP 556 Rifle Suppressor, Black
Popular

Suppressor

SilencerCo Velos LBP 556 Rifle Suppressor, Black

$997.90

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

$38.75

Strike Industries Extended Bolt Catch
Popular

Bolt Catch

Strike Industries Extended Bolt Catch

$14.95

Aero Pecision AR15 Complete Lower Receiver w/ FDE MOE Grip & SL-S Carbine Stock - FDE
Popular

Lower Receiver

Aero Pecision AR15 Complete Lower Receiver w/ FDE MOE Grip & SL-S Carbine Stock - FDE

$12.91

Streamlight ProTac Rail Mount HL-X Laser 1000 Lumen Weapon Light with Tape Switch - CR123A
Popular

Light

Streamlight ProTac Rail Mount HL-X Laser 1000 Lumen Weapon Light with Tape Switch - CR123A

$155.09

Phase 5 Tactical Ar-15 90 Degree Ambi Safety Selector Black
Popular

Safety

Phase 5 Tactical Ar-15 90 Degree Ambi Safety Selector Black

$49.99

Magpul Moe K2 Grip Polymer Gray
Popular

Pistol Grip

Magpul Moe K2 Grip Polymer Gray

$13.79

SIG Sauer Stock Adapter - 1913 Interface Folding Knuckle
Popular

Stock Adapter

SIG Sauer Stock Adapter - 1913 Interface Folding Knuckle

$97.90

NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC
Popular

Iron Sights

NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC

$49.31

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

B5 Systems Trigger Guard ATG-001-01
Popular

Trigger Guard

B5 Systems Trigger Guard ATG-001-01

$12.14

Timber Creek Outdoors Ar-15 Takedown Pin Set - Red
Popular

Takedown Pin

Timber Creek Outdoors Ar-15 Takedown Pin Set - Red

$10.50

Phase 5 Version 2 Extended Bolt Release, 2.15" - EBRV2
Popular

Bolt Catch

Phase 5 Version 2 Extended Bolt Release, 2.15" - EBRV2

$59.99

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

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

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

Charging Handle

Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers

$84.99

Geissele Automatics Super Stainless Ar-15 Magazine Release Catch
Popular

Magazine Release

Geissele Automatics Super Stainless Ar-15 Magazine Release Catch

$20.90

Aero Precision AR-15 16" 5.56 Mid-Length Complete Upper w/ Pinned FSB, MOE SL Mid-Length Handguard - Black
Popular

Upper Receiver

Aero Precision AR-15 16" 5.56 Mid-Length Complete Upper w/ Pinned FSB, MOE SL Mid-Length Handguard - Black

$27.59

Geissele Automatics Llc Ar-15 16 Super Duty Stripped Upper Receiver Ddc
Popular

Upper Receiver

Geissele Automatics Llc Ar-15 16 Super Duty Stripped Upper Receiver Ddc

$921.58

Daniel Defense Collapsible Buttstock - Black
Popular

Stock & Brace

Daniel Defense Collapsible Buttstock - Black

$82.00

Strike Industries Carbine Length Pistol Buffer Tube - Red
Popular

Buffer Tube

Strike Industries Carbine Length Pistol Buffer Tube - Red

$49.95

Strike Industries Fang Billet Aluminum Trigger Guard Black
Popular

Trigger Guard

Strike Industries Fang Billet Aluminum Trigger Guard Black

$18.95

Magpul AFG Angled Fore Grip - Black
Popular

Foregrip

Magpul AFG Angled Fore Grip - Black

$27.23

SureFire Rail Grabber Tape Switch - 7" - Black
Popular

Switch

SureFire Rail Grabber Tape Switch - 7" - Black

$5.97

Cmmg Ar-15 Mil-Spec Trigger Kit
Popular

Trigger

Cmmg Ar-15 Mil-Spec Trigger Kit

$29.99

B5 Systems Type 22 P-Grip - Black
Popular

Pistol Grip

B5 Systems Type 22 P-Grip - Black

$19.00

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

Geissele Automatics Llc Mk4 10.5" M-Lok Super Modular Rail Black
Popular

Handguard

Geissele Automatics Llc Mk4 10.5" M-Lok Super Modular Rail Black

$274.62

Geissele Automatics Llc Ar-15 Maritime Bolt Catch Steel Black
Popular

Bolt Catch

Geissele Automatics Llc Ar-15 Maritime Bolt Catch Steel Black

$27.21

Aero Precision M4e1 Stripped Ar-15 Lower Receiver - Black
Popular

Lower Receiver

Aero Precision M4e1 Stripped Ar-15 Lower Receiver - Black

$100.76

Cmmg Ar-15 Bolt Catch
Popular

Bolt Catch

Cmmg Ar-15 Bolt Catch

$8.69

Magpul Ar-15 Moe Enhanced Trigger Guard Black
Popular

Trigger Guard

Magpul Ar-15 Moe Enhanced Trigger Guard Black

$6.99

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

Stock & Brace

Magpul Ar-15 Moe Stock Collapsible Mil-Spec Blk

$33.99

CMMG AR15 Ambi Mag Catch, Black - 55AFF6E
Popular

Magazine Release

CMMG AR15 Ambi Mag Catch, Black - 55AFF6E

$29.75

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

B5 Systems Ar-15 Collapsible Precision Stock - Flat Dark Earth
Popular

Stock & Brace

B5 Systems Ar-15 Collapsible Precision Stock - Flat Dark Earth

$218.50

Magpul MBUS Gen 3 Folding Rear Sight, Black - MAG1167-BLK
Popular

Iron Sights

Magpul MBUS Gen 3 Folding Rear Sight, Black - MAG1167-BLK

$42.52

American Tactical Imports AR-15 Mil-Sport Stripped Lower Receiver ***BLEMISHED****
Popular

Lower Receiver

American Tactical Imports AR-15 Mil-Sport Stripped Lower Receiver ***BLEMISHED****

$30.00

Rise Armament High Performance Trigger Single Stage Drop-in 3.5lb Black
Popular

Trigger

Rise Armament High Performance Trigger Single Stage Drop-in 3.5lb Black

$117.49

Luth-Ar Llc Ar-308 Rifle Buffer Spring
Popular

Buffer Spring

Luth-Ar Llc Ar-308 Rifle Buffer Spring

$6.57

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

Optic

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

$109.99

LWRC IC Complete Lower Black 5.56 / .223 Rem
Popular

Lower Receiver

LWRC IC Complete Lower Black 5.56 / .223 Rem

$599.00

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

$37.95

Unity Tactical FAST Magnifier Mount 2.26" Optical Height - FSTOMF
Popular

Optic Mount

Unity Tactical FAST Magnifier Mount 2.26" Optical Height - FSTOMF

$236.99

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

Charging Handle

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

$103.99

Wilson Combat Ar-15 Billet Upper Receiver
Popular

Upper Receiver

Wilson Combat Ar-15 Billet Upper Receiver

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

Lower Receiver

Lmt Mars-L Ambidextrous Ar-15 Stripped Lower Receiver

$352.35

Magpul Moe K2 Grip Polymer Black
Popular

Pistol Grip

Magpul Moe K2 Grip Polymer Black

$13.99

Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Popular

Takedown Pin

Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK

$25.99

Magpul Ar-15 Moe Rifle Stock Fixed Rifle Length Blk
Popular

Stock & Brace

Magpul Ar-15 Moe Rifle Stock Fixed Rifle Length Blk

$54.51

PSA PA-15 16" Nitride M4 Carbine 5.56 NATO Classic AR-15 13.5" M-Lok Railed Rifle
Popular

Complete Rifle

PSA PA-15 16" Nitride M4 Carbine 5.56 NATO Classic AR-15 13.5" M-Lok Railed Rifle

$549.99

Dead Air Xemax 11/16-24 Muzzle Brake, Black
Popular

Muzzle Device

Dead Air Xemax 11/16-24 Muzzle Brake, Black

$62.40

Wilson Combat Wc-15 Billet Lower Receiver
Popular

Lower Receiver

Wilson Combat Wc-15 Billet Lower Receiver

$61.65

SIG Sauer Juliet 3 Magnifier Micro 3X, Black - SOJ3M001
Popular

Magnifier

SIG Sauer Juliet 3 Magnifier Micro 3X, Black - SOJ3M001

$179.99

Spikes Tactical T3 Tungsten Buffer, Black - SLA00T3
Popular

Buffer

Spikes Tactical T3 Tungsten Buffer, Black - SLA00T3

$40.46

Griffin Armament .300 Blackout Hedp Ar-15 Barrel - 9.5"
Popular

Barrel

Griffin Armament .300 Blackout Hedp Ar-15 Barrel - 9.5"

$280.25

Aero Precision M4E1 Stripped Lower Receiver - Kodiak Brown Anodized
Popular

Lower Receiver

Aero Precision M4E1 Stripped Lower Receiver - Kodiak Brown Anodized

$121.69

Wilson Combat Tactical Triggerguard
Popular

Trigger Guard

Wilson Combat Tactical Triggerguard

$17.15

Magpul MBUS Gen 3 Folding Front Sight, Black - MAG1166-BLK
Popular

Iron Sights

Magpul MBUS Gen 3 Folding Front Sight, Black - MAG1166-BLK

$24.99

Steiner Optics DBAL-D2 Dual Beam Aiming Laser with IR LED Illuminator - Black
Popular

Laser

Steiner Optics DBAL-D2 Dual Beam Aiming Laser with IR LED Illuminator - Black

$1676.22

TPS Arms AR-15 Mag Catch Assembly, Black - AR-1031
Popular

Magazine Release

TPS Arms AR-15 Mag Catch Assembly, Black - AR-1031

$8.48

Strike Industries Ar-15 Ambidextrous Safety Selector Switch - Red
Popular

Safety

Strike Industries Ar-15 Ambidextrous Safety Selector Switch - Red

$62.95

Dead Air Nomad Ti XC Xeno Rifle Suppressor - Black
Popular

Suppressor

Dead Air Nomad Ti XC Xeno Rifle Suppressor - Black

$1002.99

Hogue Ar-15 OverMolded Pistol Grip - Beaver Tail - No Finger Grooves - Black
Popular

Pistol Grip

Hogue Ar-15 OverMolded Pistol Grip - Beaver Tail - No Finger Grooves - Black

$25.46

Rise Armament Ra-140 Rave Super Sporting Trigger Drop-in Curved
Popular

Trigger

Rise Armament Ra-140 Rave Super Sporting Trigger Drop-in Curved

$99.00

Hornady Precision Hunter 22 Creedmoor 80gr ELD-X 20 Rounds Brass Case
Popular

.22 Creedmoor

Hornady Precision Hunter 22 Creedmoor 80gr ELD-X 20 Rounds Brass Case

$38.38

Geissele Automatics Super 42 Braided Buffer Spring and H2 Buffer
Popular

Buffer

Geissele Automatics Super 42 Braided Buffer Spring and H2 Buffer

$82.99

Holosun IRIS-RD3, IR Laser Designator/Illuminator
Popular

Laser

Holosun IRIS-RD3, IR Laser Designator/Illuminator

$899.99

Cmc Triggers Ar-15 Buffer Tube Assembly Carbine Mil-Spec 6-Position
Popular

Buffer Tube

Cmc Triggers Ar-15 Buffer Tube Assembly Carbine Mil-Spec 6-Position

$51.30

Geissele Automatics Llc Ar-15 Ultra Precision 5 Axis Trigger Guard Black
Popular

Trigger Guard

Geissele Automatics Llc Ar-15 Ultra Precision 5 Axis Trigger Guard Black

$33.30

Wilson Combat Tr-Ttu-M2 Tactical Trigger Unit
Popular

Trigger

Wilson Combat Tr-Ttu-M2 Tactical Trigger Unit

$157.91

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

Charging Handle

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

$103.99

Timber Creek Outdoors Ambidextrous Safety Selector - Fde
Popular

Safety

Timber Creek Outdoors Ambidextrous Safety Selector - Fde

$20.99

Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride
Popular

Bolt Carrier Group

Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride

$150.49

Pro Ambidextrous Safety Selector for AR-15 Black
Popular

Safety

Pro Ambidextrous Safety Selector for AR-15 Black

$48.49

Lmt Mars-Ls Pdw Complete Ambidextrous Ar-15 Lower Receiver
Popular

Lower Receiver

Lmt Mars-Ls Pdw Complete Ambidextrous Ar-15 Lower Receiver

$1019.70