Trending AR-15 Parts
The most popular AR-15 parts this week, ranked by builder interest.
Updated · ranked by real data
AR-15 Parts: most added in August 2026
The parts builders added most in August 2026, ranked from every build on GunPartPicker.
- 1.Geissele Automatics AR-15 SSA-E X Lightning Bow TriggerGeissele · Trigger
- 2.Wilson Combat AR-15 Lower Receiver ForgedWilson Combat · Lower Receiver
- 3.CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3BCMMG · Takedown Pin
- 4.Bravo Company M16 Bolt Carrier Group BlackBravo Company · Bolt Carrier Group
- 5.Aero Precision AR-15 Breach Charging Handle Ambidextrous Small LeversAero Precision · Charging Handle
- 6.Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002Smith & Wesson · Lower Receiver
- 7.Aero Precision M4E1 Complete Lower Receiver W/MOE SL Grip & SL-S Carbine StockAero Precision · Lower Receiver
- 8.Strike Industries Extended Bolt CatchStrike Industries · Bolt Catch
- 9.Geissele Automatics AR-15 SSA X Lightning Bow TriggerGeissele · Trigger
- 10.Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - FreedomAero Precision · Lower Receiver
Updated · counts come from real builds on GunPartPicker
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.
Lower Receiver
Wilson Combat Ar-15 Lower Receiver Forged
$42.50
Lower Receiver
Aero Pecision AR15 Complete Lower Receiver w/ FDE MOE Grip & SL-S Carbine Stock - FDE
$12.91
Lower Receiver
Smith & Wesson M&P15 Complete Lower 5.56x45mm/.223 Remington, Black - 812002
$339.20
Bolt Carrier Group
Bravo Company M16 Bolt Carrier Group Black
$199.00
Takedown Pin
CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
$16.38
Charging Handle
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
$154.95
Iron Sights
NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC
$49.31
Foregrip
Magpul AFG-2 Angled Fore Grip - Black
$23.99
Trigger Guard
B5 Systems Trigger Guard ATG-001-01
$19.00
Stock & Brace
Magpul Ar-15 Moe Stock Collapsible Mil-Spec Blk
$33.99
Bolt Catch
Strike Industries Extended Bolt Catch
$14.95
Charging Handle
Radian Raptor Slim Line Ambidextrous Ar-15 Charging Handle - Black
$90.99
Charging Handle
Breek Arms Ar-15 Warhammer Mod2 Ambidextrous Charging Handle Black
$47.49
Trigger
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
$335.00
Buffer Tube
Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension
$38.95
Upper Receiver
Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16"
$880.95
Trigger
Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger
$335.00
Charging Handle
Breek Arms Warhammer Mod2 Ar-15 Ambidextrous Charging Handle - Fde
$49.95
Light
Streamlight ProTac Rail Mount HL-X Laser 1000 Lumen Weapon Light with Tape Switch - CR123A
$155.99
Lower Receiver
Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11
$284.95
Optic Mount
Weaver Multi-Slot Base - 48400
$15.09
Optic
Eotech 3x30.5mm x 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
$1289.00
Magazine Release
CMMG AR15 Ambi Mag Catch, Black - 55AFF6E
$29.75
Lower Receiver
Lmt Mars-L Ambidextrous Ar-15 Stripped Lower Receiver
$342.00
Magazine Release
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
$37.95
Pistol Grip
Magpul Moe K2 Grip Polymer Gray
$14.97
Switch
SureFire Rail Grabber Tape Switch - 7" - Black
$106.79
Stock & Brace
Magpul DT Carbine Stock - Mil-Spec - FDE - MAG1377-FDE
$52.99
Trigger
Geissele Automatics G2S Two Stage AR-15 Trigger .154"
$146.14
Optic
EOTech XPS2 Holographic Sight, Tan - XPS2-0TAN
$579.99
Stock & Brace
Daniel Defense Collapsible Buttstock - Black
$82.00
Lower Receiver
Smith & Wesson Sw M&p15 Stripped Lower Receiver 5.56mm
$132.27
End Plate
BRAVO COMPANY AR15/M16 QD Receiver End Plate (BCM-EPM4-QD)
$16.95
Charging Handle
BCM GFHMK2MED Ambidextrous MK2 Charging Handle Compatible w/ Mil-Spec AR-15 Black 7075 T-6 Aluminum
$74.95
Lower Receiver
PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine
$179.99
Trigger
Wilson Combat Tactical Trigger Unit, Two Stage, Semi-Auto, Paul Howe Model - TR-TTU-H2
$157.90
Upper Receiver
Daniel Defense 14.5" 5.56 M4a1 Ar-15 Complete Upper - Flat Dark Earth
$1544.00
Bolt Catch
Geissele Automatics Llc Ar-15 Maritime Bolt Catch Steel Black
$27.21
Bolt Carrier Group
Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride
$150.49
Trigger
Geissele Automatics Super Semi-Automatic Enhanced SSA-E Two Stage AR-15 Trigger .154"
$201.19
Lower Receiver
Centurion Arms CM4 5.56 Forged AR-15 Receiver Set
$225.63
Stock & Brace
Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
$82.00
Upper Receiver
Yankee Hill Machine A3 Ar-15 Upper Receiver Assembly
$121.75
Bolt Catch
Cmmg Ar-15 Bolt Catch
$8.75
Trigger
Rise Armament Super Sporting Ar15/10 Single Stage Trigger - Flat - Dtom Special Edition
$108.09
Pistol Grip
B5 Systems P-Grip 23 Black Composite
$19.00
Trigger
Rise Armament Ra-140 Rave Super Sporting Trigger Drop-in Curved
$99.00
Lower Receiver
Griffin Armament MK2 Ambi Stripped AR-15 Lower Receiver - Ambidextrous Controls - Flared Magwell - Anodized Black - MK2AL
$209.00
Stock & Brace
B5 Systems Government Issue Sopmod Stock Collapsible Mil-Spec Blk
$95.00
Stock & Brace
Magpul DT-PR Carbine Stock Black - Tactical DT-PR Carbine Stock for Optimal Shooting Performance and Durability - MAG1447-BLK
$47.99
Trigger
Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP
$159.13
Magazine Release
Rise Armament Ar-15 Magazine Release Button - Rise Red
$7.99
Foregrip
Arisaka Defense Vertical Grip M-LOK
$28.99
Buffer Spring
Sprinco AR-15 Blue Buffer Spring & H2 Buffer Combo
$43.20
Buffer Tube
Bravo Company Manufacturing Mk2 Receiver Extension
$49.95
Safety
Timber Creek Outdoors Ambidextrous Safety Selector - Black
$20.00
Buffer
CMMG AR-15 Carbine Buffer Assembly - 55CA977
$19.99
Safety
Timber Creek Outdoors Ambidextrous Safety Selector - Fde
$13.32
Buffer Spring
Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C
$19.95
Buffer Spring
Strike Industries Flat Wire Spring, 10" L x 0.75" ID x 0.94" OD - AR-FWS-P
$14.95
Bolt Carrier Group
Wilson Combat .308 Win Bolt Carrier Assembly, Nickel Boron - TR-BCA-NB-308
$243.99
Buffer
Geissele Automatics Super 42 Braided Buffer Spring and H3 Buffer
$108.00
Lower Receiver
PSA AR-15 Blem "Stealth" Stripped Lower Receiver
$69.99
Barrel
Daniel Defense 16" 5.56 NATO CHF Mid-Length 1:7 Government Contour AR-15 Barrel
$327.00
Rear Sight
Magpul Ar-15 Flip-Up Mbus Pro Magpul Back-Up Rear Sight Black
$79.99
Front Sight
Magpul .432" Flip-Up Mbus Pro Back-Up Front Sight Steel Black
$66.99
Charging Handle
Radian Weapons R0939 Raptor SD 45/90 Charging Hand...
$159.95
Buffer
Geissele Automatics Super 42 Braided Buffer Spring and H2 Buffer
$89.99
Buffer Tube Assembly
Bravo Company Manufacturing Mil-Spec Carbine Stock Hardware Kit
$54.99
Gas Tube
Sons of Liberty Gun Works Ar-15 Gas Tube Stainless Steel Carbine
$23.00
Upper Receiver
Tacfire 7" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-7
$241.33
Upper Receiver
Geissele Automatics Llc Ar-15 16 Super Duty Stripped Upper Receiver Ddc
$1150.00
Pistol Grip
B5 Systems Type 22 P-Grip - Black
$19.00
Buffer
Spikes Tactical T3 Tungsten Buffer, Black - SLA00T3
$40.46
Handguard
Bravo Company Mfg M-LOK 13" Modular Rail, Black - MCMR13556BLK
$224.95
Gas Tube
Sons of Liberty Gun Works Ar-15 Gas Tube Stainless Steel Mid-Length
$19.59
Handguard
Midwest Industries Combat Rail M-Lok Ar-15 Handguard Black - 14"
$175.46
Suppressor
Dead Air Nomad Ti XC Direct Thread Rifle Suppressor - FDE
$958.99
Barrel
LMT MRP 5.56 NATO Chrome Lined AR-15 Barrel - 16" 1:7 Twist
$554.40
Upper Receiver
Sons of Liberty Gun Works Stripped Upper Receiver
$142.50
Pistol Grip
Magpul Moe Grip Polymer Black
$13.99
Gas Block
Sons of Liberty Gun Works Gas Block V2 - .750"
$45.00
Optic
Holosun HE530G 30mm Red Dot Sight
$469.99
Forward Assist
Sons of Liberty Gun Works Ar-15 Forward Assist Assembly
$15.19
Dust Cover
Sons of Liberty Gun Works Ar-15 Ejection Door Cover Kit
$16.00
Muzzle Device
Sons of Liberty Gun Works Ar-15 A2 Flash Suppressor 22 Cal 1/2-28 Steel Black
$12.34
Upper Receiver
Spike's Tactical Ar-15 Upper Receiver Assembly
$99.99
Stock Adapter
SIG Sauer MCX Stock Adapter Kit
$125.43
Foregrip
Magpul M-LOK AFG Angled Foregrip - Flat Dark Earth
$18.81
Lower Receiver
Anderson Stripped Lower Receiver – No Logo (3 Pack)
$284.85
Light
Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light with Tapeswitch
$119.99
Trigger
Ar-15 Hammer Nickel Teflon
$21.99
Trigger Guard
Magpul Ar-15 Moe Enhanced Trigger Guard Black
$6.99
Safety
Strike Industries Ar-15 Ambidextrous Safety Selector Switch - Red
$62.95
Upper Receiver
LBE Unlimited ARUPPER AR-15 Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Finish 0\" Barrel
$94.44
Magazine Release
CMMG AR15 Magazine Catch - 55AFFA7
$9.45
Bolt Carrier Group
LMT Full Auto 5.56 Carrier with Enhanced Bolt
$489.60
Trigger
Timney Trigger Ar-15 Competition 3lb Single Stage .154"
$143.90
Optic
Sig Sauer Romeo 5XDR Gen II Red Dot Dot w/ Juliet 5 Micro Magnifier - SORJ5X201
$269.99
Lower Receiver
Lmt Mars-Ls Pdw Complete Ambidextrous Ar-15 Lower Receiver
$1019.70