AR15 Lower Parts Kits & Spare Parts
AR15 Lower Parts Kits & Spare Parts
Discounts for Aero Precision, Ballistic Advantage, VG6 and Faxon Firearms automatically applied when added to cart. (If no discount appears when added then that is our lowest price)
Showing all 179 results
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AR15 MIL-SPEC Stainless Steel Hammer Pins
$4.99$2.9913 in stock -
Aero Precision M4 Pistol Grip Mil Spec – Black
$3.5025 in stock -
Seekins Precision AR-15 Mag Release
$5.75547 in stock -
Seekins Precision AR-15 Mag Release – FDE
$5.75120 in stock -
Seekins Precision AR-15 Mag Release – Red
$5.75105 in stock -
10% OFF IN CARTBravo Company Mod 0, Trigger Guard – Wolf Finish
$6.95in stock -
AR15 Pivot Pin in Silver -Long
$9.99$6.99Out of stock -
AR15 Takedown Pin in Silver -Long
$9.99$6.99Out of stock -
10% OFF IN CARTMagpul Polymer Trigger Guard Black
$8.504143 in stock -
10% OFF IN CARTMagpul Polymer Trigger Guard Fde
$8.50954 in stock -
10% OFF IN CARTMagpul Polymer Trigger Guard Gray
$8.50239 in stock -
10% OFF IN CARTMagpul Polymer Trigger Guard Od
$8.50406 in stock -
10% OFF IN CARTBad Enhanced Mag Catch Black
$8.5072 in stock -
Bastion Ar15 Mag Release Usa Flag
$9.10in stock -
Bastion Ar Ejec Port Cover Usa Flag
$9.10in stock -
Lwrc Extended Rear Takedown Pin
$9.17158 in stock -
10% OFF IN CARTMission First Tactical E-volv, AR-15 Trigger Guard
$9.9974 in stock -
10% OFF IN CARTMission First Tactical E-volv, AR-15 Trigger Guard – Scorched Dark Earth
$9.9916 in stock -
10% OFF IN CARTCmmg Parts Kit Ar15 Upper Pins-sprng
$11.6187 in stock -
10% OFF IN CARTCmmg Part Kit Ar15 Lower Pins-spring
$11.611039 in stock -
Aero Precision Billet Trigger Guard – Black
$18.00$12.00Out of stock -
Bastion Takedown And Pivot Pin Set Biohaz
$12.0018 in stock -
Bastion Takedown And Pivot Pin Set Spartan
$12.0044 in stock -
Bastion Takedown And Pivot Pin Set Us Flag
$12.00161 in stock -
10% OFF IN CARTSeekins Precision Enhanced Bolt Catch
$12.48790 in stock -
10% OFF IN CART2a Builder Series Ar15 Billet Trigger Guard
$13.79in stock -
10% OFF IN CARTBad Enhanced Single Side Safety Selector
$14.9524 in stock -
ATG™ AR15 GRIP – BLACK
$19.99$14.9915 in stock -
10% OFF IN CARTCmc Anti-walk Pin Set Small Pins
$15.001597 in stock -
Bastion Threaded Trigger Guard 5.56 Ar Blank
$15.0033 in stock -
Bastion Threaded Trigger Guard 5.56 Ar Skull
$15.0064 in stock -
Bastion Threaded Trigger Guard 5.56 Ar Flag
$15.0067 in stock -
10% OFF IN CARTCmmg Parts Kit Ar15 Hd Pivot Td Pins
$15.86162 in stock -
10% OFF IN CARTBad Mag Release Kit Mod1 Black
$15.9583 in stock -
10% OFF IN CART2a Armament Magazine Catch Assembly, G1 Groove
$18.2968 in stock -
10% OFF IN CART2a Armament Magazine Catch Assembly, G1 Pocket
$18.2937 in stock -
Patriot Ordnance Factory Universal Bolt Catch
$18.2953 in stock -
10% OFF IN CART2a Armament Takedown Pins For AR-15
$18.2930 in stock -
BKF AR15 Lower Parts Kit (LPK) Minus FCG, Trigger Guard and A2 Grip
$24.99$18.49206 in stock -
10% OFF IN CARTMagpul Enhanced Ar Mag Release
$18.95487 in stock -
Seekins Precision Billet AR-15 Trigger Guard
$18.9976 in stock -
10% OFF IN CARTSeekins Billet AR-15 Trigger Guard – Red
$18.9948 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Xmr Burnt Bronze For Ar-15
$19.0018 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Xmr Black For Ar-15
$19.0048 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Xmr Blue For Ar-15
$19.0013 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Xmr Gun Metal Grey For Ar-15
$19.0018 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Xmr Red For Ar-15
$19.0033 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Xmr Silver For Ar-15
$19.0019 in stock -
Kns .250 Enhanced Push Button Pivot Pin
$19.6019 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Xmr Fde For Ar-15
$19.9530 in stock -
AR-15 Dual Safety Selector Lever
$29.99$19.9910 in stock -
Aero Precision AR15 Lower Parts Kit (LPK) Minus FCG/Trigger Guard/Pistol Grip
$32.50$20.00Out of stock -
Kns .250 Enhanced Push Button Take down Pin
$20.0039 in stock -
10% OFF IN CARTOdin Ambi-sling-qd Plate Black – For Ar-15 Pistol Buffer Tubes
$20.4354 in stock -
10% OFF IN CARTOdin Ambi-sling-qd Plate Blue – For Ar-15 Pistol Buffer Tubes
$20.437 in stock -
10% OFF IN CARTOdin Ambi-sling-qd Plate Red – For Ar-15 Pistol Buffer Tubes
$20.4365 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen2 Xmr2 Burnt Bronze Ar-15
$20.9016 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen2 Xmr2 Black For Ar-15
$20.9091 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen2 Xmr2 Blue For Ar-15
$20.9023 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen2 Xmr2 Gun Metal Grey Ar-15
$20.9057 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen2 Xmr2 Red For Ar-15
$20.9035 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen2 Xmr2 Silver For Ar-15
$20.9011 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen3 Xmr3 Burnt Bronze Ar-15
$20.9025 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen3 Xmr3 Black For Ar-15
$20.90138 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen3 Xmr3 Blue For Ar-15
$20.9041 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen3 Xmr3 Gun Metal Grey Ar-15
$20.9029 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen3 Xmr3 Red For Ar-15
$20.9073 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen3 Xmr3 Silver For Ar-15
$20.9036 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen2 Xmr2 Fde For Ar-15
$21.8571 in stock -
10% OFF IN CARTOdin Extended Magazine Release – Gen3 Xmr3 Fde Ar-15
$21.8532 in stock -
10% OFF IN CARTBAD Enhanced Modular Magazine Release, Large – Black
$21.95106 in stock -
10% OFF IN CARTBAD Enhanced Modular Magazine Release, Large – Silver
$21.951 in stock -
10% OFF IN CARTBAD Enhanced Modular Magazine Release, Large – Red
$21.9531 in stock -
10% OFF IN CARTCmmg Ambi Safety Selector Ar15
$23.2874 in stock -
Midwest Heavy Duty Qd End Plate
$23.5026 in stock -
Radian Ultralight Qd Ar15 Endplate
$24.65Out of stock -
Radian Weapons Takedown Pins Black
$24.6568 in stock -
Patriot Ordnance Factory Selector Switch, Ambidextrous
$25.33135 in stock -
10% OFF IN CARTSpike’s Tac Billet Trigger Guard G2
$25.6779 in stock -
10% OFF IN CART2a Armament Takedown Pins For AR-15 – Titanium
$26.0056 in stock -
10% OFF IN CARTBAD Enhanced Pin Set AR-15
$28.45254 in stock -
10% OFF IN CARTMagpul B.a.d. Lever Black
$28.453129 in stock -
10% OFF IN CARTGeissele Maritime Bolt Catch
$29.00884 in stock -
10% OFF IN CARTBad Mag Release Kit Mod2 Black
$30.2580 in stock -
10% OFF IN CART2a Armament Takedown Pins, Titanium – AR-15
$30.499 in stock -
10% OFF IN CARTCmmg Ar-15 Parts Kit Field Repair
$31.6968 in stock -
Kns Non-rot Trg-hmr Pin S&w G2 Mod2
$31.8552 in stock -
Kns Non-rot Trg-hmr Pin.154 G2
$31.85835 in stock -
Kns Non-rot Trg-hmr Pin.1555 G2
$31.8572 in stock -
Kns Non-rot Trg/hmr Pin.154 G2 Mod2
$31.85in stock -
Kns Non-rot Trg/hmr Pin.1555 G2 Mod2
$31.85in stock -
10% OFF IN CARTBad Enhanced Lpk Mod3
$33.0082 in stock -
10% OFF IN CARTCmmg Receiver Extension A1
$34.617 in stock -
10% OFF IN CARTCmmg Receiver Extension Mk4
$34.6139 in stock -
Kns Non-rot Trg-hmr Pin.154 G2 De
$35.5379 in stock -
Kns Non-rot Trg-hmr Pin.154 G2 M2 De
$35.53117 in stock -
10% OFF IN CARTCmmg Receiver Extension Pstl
$36.517 in stock -
10% OFF IN CARTBad Enhanced Pin Set Titanium
$37.0077 in stock -
10% OFF IN CARTElftmann Ambi Speed Safety Black
$37.95Out of stock -
10% OFF IN CARTElftmann Ambi Speed Safety Stainless
8 in stock -
Noveske Sts Short Throw Safety Rh 60
$37.9572 in stock -
Shooting Innovations – Competition Control Kit
$49.99$37.9931 in stock -
10% OFF IN CARTSeekins Precision Safety Selector Kit
$37.99702 in stock -
10% OFF IN CARTSeekins Precision Safety Selector Kit – FDE
$37.99204 in stock -
10% OFF IN CARTCmmg Lpk 556 Without Grip-fire Control Group
$38.201782 in stock -
10% OFF IN CARTBad Enhanced Bolt Catch Black
$39.00126 in stock -
10% OFF IN CARTBad Titanium Enhanced Pin Set Black
$39.95Out of stock -
10% OFF IN CARTCmc Lpk 556 Without Grip-fire Control Group
$39.951056 in stock -
Noveske Sts Short Throw Sfty Ambi 60
$39.95310 in stock -
Mil-Spec AR15 Lower Parts Kit (LPK)
$49.99$39.99Out of stock -
BKF AR15 Enhanced Lower Parts Kit (LPK)
$69.99$39.99227 in stock -
10% OFF IN CARTSpike’s Tactical Lower Receiver Parts Kit Without Fire Control Group-trigger Group, 556nato
$41.35390 in stock -
Hiperfire Hipertrain Ar15 Trigger Demonstrator Black
$42.7518 in stock -
Aero Precision AR15 Lower Parts Kit (LPK)
$55.00$45.00Out of stock -
Shooting Innovations Competition Control Kit – Burnt Bronze Cerakote
$59.99$45.001 in stock -
Shooting Innovations Competition Control Kit – Midnight Bronze Cerakote
$59.99$45.001 in stock -
Shooting Innovations Competition Control Kit – Tungsten Cerakote
$59.99$45.002 in stock -
Shooting Innovations Competition Control Kit – FDE Cerakote
$59.99$45.002 in stock -
Shooting Innovations Competition Control Kit – ODG Cerakote
$59.99$45.002 in stock -
10% OFF IN CARTOdin Ambidextrous Modular – Safety Black For Ar-15
$46.5559 in stock -
10% OFF IN CARTOdin Ambidextrous Modular – Safety Blue For Ar-15
$46.5529 in stock -
10% OFF IN CARTOdin Ambidextrous Modular – Safety Red For Ar-15
$46.5552 in stock -
Radian Talon Safety Selector 2 Lever Black
$47.451319 in stock -
Radian Talon Safety Selector 2 Lever Tungsten
$47.45106 in stock -
Radian Talon Safety Selector 2 Lever Fde
$47.45333 in stock -
Radian Talon Safety Selector 2 Lever Brown
$47.45Out of stock -
Radian Talon Safety Selector 2 Lever Red
$47.45305 in stock -
10% OFF IN CARTOdin Ambidextrous Modular – Safety Fde For Ar-15
$47.5057 in stock -
Hiperfire Hiperswitch Ambi Safety Selector Set Black
$47.5046 in stock -
Hiperfire Hiperswitch Ambi Safety Selector Set Red
$47.5027 in stock -
Kak Industries AR15 Lower Parts Kit (LPK) W/ Billet Trigger Guard
$50.00Out of stock -
Pof Ambi Safety Selector 50-90 Degree
$53.494 in stock -
10% OFF IN CARTCmmg Receiver Extension Kit Pstl
$54.2056 in stock -
10% OFF IN CARTOdin Lower Parts Kit W-pistol – Grip For Ar-15
$56.0527 in stock -
10% OFF IN CARTBad Bad-ass Ambi Safety Selector Black
$57.00197 in stock -
10% OFF IN CARTFortis Sls Fifty Ambi Safety Selector
$59.66in stock -
10% OFF IN CARTFortis Fifty Ambi Safety Selector
$59.66in stock -
10% OFF IN CARTCmmg Receiver Ext Kit Carbine Ar15
$59.8397 in stock -
BKF AR15 Enhanced Lower Build Kit (No Stock)
$89.99$59.9992 in stock -
10% OFF IN CARTCmmg Lpk 556 Black
$63.581292 in stock -
10% OFF IN CARTBcm Pnt Trigger Assembly Ar15
$65.95232 in stock -
10% OFF IN CARTBcm Pnt Trigger Assembly Ar15
$65.95169 in stock -
10% OFF IN CARTBad Bad-cass Combat Ambi Safety Selector Black
$65.95Out of stock -
Radian Talon Safety Selector 4 Lever Black
$66.45Out of stock -
Radian Talon Safety Selector 4 Lever Tungsten
$66.459 in stock -
Radian Talon Safety Selector 4 Lever Fde
$66.45Out of stock -
Radian Talon Safety Selector 4 Lever Brown
$66.45Out of stock -
Radian Talon Safety Selector 2 Lever Np3
$66.45Out of stock -
BKF AR15 Enhanced Lower Build Kit
$99.99$69.9948 in stock -
BKF AR15 Enhanced Magpul Lower Build Kit (No Stock)
$99.99$69.99Out of stock -
10% OFF IN CARTSpike’s Lpk Standard 556 Black
$73.45807 in stock -
10% OFF IN CARTBad Bad-ass Ambi Safety Selector Fde
$75.05Out of stock -
10% OFF IN CARTBad Bad-ass Ambi Safety Selector Stainless
$75.059 in stock -
10% OFF IN CARTBad Bad-ass Ambi Safety Selector Short Throw
$79.95121 in stock -
BKF AR15 Enhanced Magpul Foliage Lower Build Kit
$99.99$79.9916 in stock -
10% OFF IN CARTCmmg Lpk Ar15 W-ambi Safety Selector
$80.1488 in stock -
10% OFF IN CARTSeekins Builders Kit Lpk 556 Black
$89.00211 in stock -
Radian Talon Safety Selector 4 Lever Np3
$90.20Out of stock -
10% OFF IN CARTBad Bad-cass Full Auto Ambidextrous Safety Selector Black
$93.9525 in stock -
Hiperfire Edt Designated Marksman Ar15 Trigger Assembly
$94.0535 in stock -
Hiperfire Edt Heavy Gunner Ar15 Trigger Assembly
$94.0538 in stock -
Hiperfire Edt Sharp Shooter Ar15 Trigger Assembly
$94.0544 in stock -
Wmd Accent Build Kit 556
$95.00in stock -
BKF AR15 Enhanced Lower Build Kit W/ SB Tactical Mini Brace
$149.99$99.9923 in stock -
10% OFF IN CARTDaniel Defense Lpk 556 Black
$100.00138 in stock -
10% OFF IN CARTBcm Parts Kit Lower Black – For Ar-15
$119.95133 in stock -
10% OFF IN CARTBcm Parts Kit Lower Fde – For Ar-15
$119.9554 in stock -
10% OFF IN CARTBad Enhanced Lpk Mod X
$125.0052 in stock -
BKF AR15 Enhanced Lower Build Kit W/ SBA3 Brace
$199.99$149.9918 in stock -
10% OFF IN CARTSpike’s Lpk Enhanced 556 Black
$156.14143 in stock -
10% OFF IN CARTSpike’s Lpk Enhanced 556 Fde
$160.7439 in stock -
Lwrc Deluxe Lpk 556nato Black
$183.30Out of stock -
10% OFF IN CARTTroy Ambidextrous M4 Upgrade Package
$187.49Out of stock -
Hiperfire Hipertouch Elite Ar15 Trigger Assembly
$190.0032 in stock -
Hiperfire Hipertouch Genesis Ar15 Trigger Assembly
$190.0018 in stock -
Hiperfire Hipertouch Reflex Ar15 Trigger Assembly
$213.7536 in stock -
Hiperfire Hipertouch Competition Ar15 Trigger Assembly
$237.5068 in stock -
BKF AR15 Enhanced Lower Build Kit W/ PDW Brace
$299.99$249.991 in stock -
Hiperfire Hipertouch Eclipse Ar15 Trigger Assembly
$261.2570 in stock