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 198 results
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Lbe Ar Mag Release Button
$2.24$2.0278 in stock -
AR15 MIL-SPEC Stainless Steel Hammer Pins
$4.99$2.99Out of stock -
Lbe Ar Trigger Guard
$3.74$3.3772 in stock -
BKF M4 Pistol Grip Mil Spec – Black
$3.5014 in stock -
Lbe Ar Mag Catch Assembly
$4.49$4.041358 in stock -
Lbe Ar Bolt Catch Assembly
$5.23$4.71390 in stock -
Seekins Precision AR-15 Mag Release
$5.75260 in stock -
Seekins Precision AR-15 Mag Release – FDE
$5.7558 in stock -
Seekins Precision AR-15 Mag Release – Red
$5.7546 in stock -
Bravo Company Mod 0, Trigger Guard – Wolf Finish
$6.95$6.25in stock -
Lbe Ar15 Bolt Catch Plunger 20pk
$7.48$6.7343 in stock -
Lbe Ar15 Disconnector Spring 20pk
$7.48$6.7344 in stock -
Lbe Ar15 Hammer-trigger Pin 20pk
$7.48$6.7369 in 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 -
Magpul Polymer Trigger Guard Black
$8.50$7.654473 in stock -
Magpul Polymer Trigger Guard Fde
$8.50$7.65565 in stock -
Magpul Polymer Trigger Guard Gray
$8.50$7.65356 in stock -
Magpul Polymer Trigger Guard Od
$8.50$7.65359 in stock -
Bad Enhanced Mag Catch Black
$8.50$7.65103 in stock -
Lbe Ar15 Selector Detent 20pk
$8.96$8.0668 in stock -
Lbe Ar15 Trigger Spring 20pk
$8.96$8.0619 in stock -
Lwrc Extended Rear Takedown Pin
$9.17$8.25183 in stock -
Lbe Ar15 Hammer Spring 20pk
$9.71$8.7445 in stock -
Mission First Tactical E-volv, AR-15 Trigger Guard
$9.99$8.999 in stock -
Mission First Tactical E-volv, AR-15 Trigger Guard – Scorched Dark Earth
$9.99$8.993 in stock -
Bastion Ar15 Mag Release Usa Flag
$9.10in stock -
Bastion Ar Ejec Port Cover Usa Flag
$9.10in stock -
Lbe Ar Selector Assembly
$10.24$9.2273 in stock -
Lbe Ar15 Sfty Slctr Dtnt Spring 20pk
$10.46$9.41119 in stock -
Cmmg Parts Kit Ar15 Upper Pins-sprng
$12.46$11.21100 in stock -
Cmmg Part Kit Ar15 Lower Pins-spring
$12.46$11.21515 in stock -
Seekins Precision Enhanced Bolt Catch
$12.48$11.23330 in stock -
Rise Anti-walk Pins
$11.39127 in stock -
Aero Precision Billet Trigger Guard – Black
$18.00$12.00Out of stock -
Bastion Takedown And Pivot Pin Set Biohaz
$12.0034 in stock -
Bastion Takedown And Pivot Pin Set Spartan
$12.0051 in stock -
Bastion Takedown And Pivot Pin Set Us Flag
$12.0071 in stock -
Lbe Ar15 Trigger
$14.19$12.7753 in stock -
Bad Enhanced Single Side Safety Selector
$14.95$13.4531 in stock -
Lbe Ar15 Hammer
$14.94$13.4585 in stock -
Lbe Ar Take Down Detent 10pk
$14.94$13.4565 in stock -
Lbe Ar Take Down Detent Spring 10pk
$14.94$13.4573 in stock -
Cmc Anti-walk Pin Set Small Pins
$15.00$13.50961 in stock -
10% OFF IN CART2a Builder Series Ar15 Billet Trigger Guard
$13.79in stock -
Bad Mag Release Kit Mod1 Black
$15.95$14.3599 in stock -
ATG™ AR15 GRIP – BLACK
$19.99$14.9913 in stock -
Bastion Threaded Trigger Guard 5.56 Ar Blank
$15.0018 in stock -
Bastion Threaded Trigger Guard 5.56 Ar Skull
$15.0047 in stock -
Bastion Threaded Trigger Guard 5.56 Ar Flag
$15.0055 in stock -
Cmmg Parts Kit Ar15 Hd Pivot Td Pins
$17.02$15.32174 in stock -
Odin Extended Magazine Release – Xmr Burnt Bronze For Ar-15
$19.00$16.1524 in stock -
Odin Extended Magazine Release – Xmr Black For Ar-15
$19.00$16.15149 in stock -
Odin Extended Magazine Release – Xmr Blue For Ar-15
$19.00$16.1545 in stock -
Odin Extended Magazine Release – Xmr Gun Metal Grey For Ar-15
$19.00$16.1521 in stock -
Odin Extended Magazine Release – Xmr Red For Ar-15
$19.00$16.1514 in stock -
Odin Extended Magazine Release – Xmr Silver For Ar-15
$19.00$16.1512 in stock -
Patriot Ordnance Factory Universal Bolt Catch
$18.29$16.4658 in stock -
Odin Extended Magazine Release – Xmr Fde For Ar-15
$19.95$16.9647 in stock -
Magpul Enhanced Ar Mag Release
$18.95$17.051173 in stock -
Seekins Billet AR-15 Trigger Guard – Red
$18.99$17.0932 in stock -
Odin Ambi-sling-qd Plate Black – For Ar-15 Pistol Buffer Tubes
$20.43$17.3789 in stock -
Odin Ambi-sling-qd Plate Blue – For Ar-15 Pistol Buffer Tubes
$20.43$17.3714 in stock -
Odin Ambi-sling-qd Plate Red – For Ar-15 Pistol Buffer Tubes
$20.43$17.3769 in stock -
Odin Extended Magazine Release – Gen2 Xmr2 Burnt Bronze Ar-15
$20.90$17.7712 in stock -
Odin Extended Magazine Release – Gen2 Xmr2 Black For Ar-15
$20.90$17.7778 in stock -
Odin Extended Magazine Release – Gen2 Xmr2 Blue For Ar-15
$20.90$17.7728 in stock -
Odin Extended Magazine Release – Gen2 Xmr2 Gun Metal Grey Ar-15
$20.90$17.7754 in stock -
Odin Extended Magazine Release – Gen2 Xmr2 Red For Ar-15
$20.90$17.7747 in stock -
Odin Extended Magazine Release – Gen2 Xmr2 Silver For Ar-15
$20.90$17.7717 in stock -
Odin Extended Magazine Release – Gen3 Xmr3 Burnt Bronze Ar-15
$20.90$17.7725 in stock -
Odin Extended Magazine Release – Gen3 Xmr3 Black For Ar-15
$20.90$17.77191 in stock -
Odin Extended Magazine Release – Gen3 Xmr3 Blue For Ar-15
$20.90$17.7751 in stock -
Odin Extended Magazine Release – Gen3 Xmr3 Gun Metal Grey Ar-15
$20.90$17.7732 in stock -
Odin Extended Magazine Release – Gen3 Xmr3 Red For Ar-15
$20.90$17.7782 in stock -
Odin Extended Magazine Release – Gen3 Xmr3 Silver For Ar-15
$20.90$17.7747 in stock -
10% OFF IN CART2a Armament Magazine Catch Assembly, G1 Groove
$18.2948 in stock -
10% OFF IN CART2a Armament Magazine Catch Assembly, G1 Pocket
$18.2933 in stock -
10% OFF IN CART2a Armament Takedown Pins For AR-15
$18.2927 in stock -
BKF AR15 Lower Parts Kit (LPK) Minus FCG, Trigger Guard and A2 Grip
$24.99$18.49115 in stock -
Odin Extended Magazine Release – Gen2 Xmr2 Fde For Ar-15
$21.85$18.5773 in stock -
Odin Extended Magazine Release – Gen3 Xmr3 Fde Ar-15
$21.85$18.5722 in stock -
Seekins Precision Billet AR-15 Trigger Guard
$18.9961 in stock -
Kns .250 Enhanced Push Button Pivot Pin
$19.609 in stock -
BAD Enhanced Modular Magazine Release, Large – Black
$21.95$19.7527 in stock -
BAD Enhanced Modular Magazine Release, Large – Silver
$21.95$19.7529 in stock -
BAD Enhanced Modular Magazine Release, Large – Red
$21.95$19.7512 in stock -
AR-15 Dual Safety Selector Lever
$29.99$19.996 in stock -
Kns .250 Enhanced Push Button Take down Pin
$20.0016 in stock -
Radian Ultralight Qd Ar15 Endplate
$24.65$20.9584 in stock -
Radian Weapons Takedown Pins Black
$24.65$20.958 in stock -
Lbe Ar Ambi Selector Assy W-sprng
$23.90$21.51121 in stock -
Cmmg Ambi Safety Selector Ar15
$24.98$22.48305 in stock -
Patriot Ordnance Factory Selector Switch, Ambidextrous
$25.33$22.80306 in stock -
Spike’s Tac Billet Trigger Guard G2
$25.67$23.1053 in stock -
Midwest Heavy Duty Qd End Plate
$23.5017 in stock -
BAD Enhanced Pin Set AR-15
$28.45$25.61167 in stock -
Magpul B.a.d. Lever Black
$28.45$25.615137 in stock -
Aero Precision AR15 Lower Parts Kit (LPK) Minus FCG/Trigger Guard/Pistol Grip
$32.50$25.94Out of stock -
10% OFF IN CART2a Armament Takedown Pins For AR-15 – Titanium
$26.0034 in stock -
Geissele Maritime Bolt Catch
$29.00$26.10699 in stock -
Bad Mag Release Kit Mod2 Black
$30.25$27.2334 in stock -
Lbe Ar15 Mil Spec Trigger Group
$32.33$29.1062 in stock -
Bad Enhanced Lpk Mod3
$33.00$29.7089 in stock -
10% OFF IN CART2a Armament Takedown Pins, Titanium – AR-15
$30.4929 in stock -
Cmmg Ar-15 Parts Kit Field Repair
$34.00$30.6050 in stock -
Kns Non-rot Trg-hmr Pin S&w G2 Mod2
$31.8529 in stock -
Kns Non-rot Trg-hmr Pin.154 G2
$31.85393 in stock -
Kns Non-rot Trg-hmr Pin.1555 G2
$31.8583 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 -
Bad Enhanced Pin Set Titanium
$37.00$33.3030 in stock -
Cmmg Receiver Extension A1
$37.14$33.4316 in stock -
Cmmg Receiver Extension Mk4
$37.14$33.4326 in stock -
Cmc Lpk 556 Without Grip-fire Control Group
$39.95$33.96672 in stock -
Elftmann Ambi Speed Safety Black
$37.95$34.1628 in stock -
Elftmann Ambi Speed Safety Stainless
$37.95$34.16in stock -
Seekins Precision Safety Selector Kit
$37.99$34.19304 in stock -
Seekins Precision Safety Selector Kit – FDE
$37.99$34.1985 in stock -
Bad Enhanced Bolt Catch Black
$39.00$35.10Out of stock -
Cmmg Receiver Extension Pstl
$39.19$35.271 in stock -
Kns Non-rot Trg-hmr Pin.154 G2 De
$35.5359 in stock -
Kns Non-rot Trg-hmr Pin.154 G2 M2 De
$35.5389 in stock -
Bad Titanium Enhanced Pin Set Black
$39.95$35.9657 in stock -
Cmmg Lpk 556 Without Grip-fire Control Group
$39.95$35.96845 in stock -
Spike’s Tactical Lower Receiver Parts Kit Without Fire Control Group-trigger Group, 556nato
$41.35$37.22322 in stock -
Noveske Sts Short Throw Safety Rh 60
$37.9535 in stock -
Shooting Innovations – Competition Control Kit
$49.99$37.991 in stock -
Rise Lower Parts Kit
$37.99142 in stock -
Odin Ambidextrous Modular – Safety Black For Ar-15
$46.55$39.57124 in stock -
Odin Ambidextrous Modular – Safety Blue For Ar-15
$46.55$39.5724 in stock -
Odin Ambidextrous Modular – Safety Red For Ar-15
$46.55$39.5748 in stock -
Noveske Sts Short Throw Sfty Ambi 60
$39.95185 in stock -
Mil-Spec AR15 Lower Parts Kit (LPK)
$49.99$39.99Out of stock -
BKF AR15 Enhanced Lower Parts Kit (LPK)
$69.99$39.99182 in stock -
Radian Talon Safety Selector 2 Lever Black
$47.45$40.33626 in stock -
Radian Talon Safety Selector 2 Lever Tungsten
$47.45$40.3394 in stock -
Radian Talon Safety Selector 2 Lever Fde
$47.45$40.33228 in stock -
Radian Talon Safety Selector 2 Lever Brown
$47.45$40.3355 in stock -
Radian Talon Safety Selector 2 Lever Red
$47.45$40.33385 in stock -
Odin Ambidextrous Modular – Safety Fde For Ar-15
$47.50$40.3853 in stock -
Hiperfire Hipertrain Ar15 Trigger Demonstrator Black
$42.7511 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$45.003 in stock -
Shooting Innovations Competition Control Kit – Midnight Bronze Cerakote
$59.99$45.00Out of stock -
Shooting Innovations Competition Control Kit – Tungsten Cerakote
$59.99$45.002 in stock -
Shooting Innovations Competition Control Kit – FDE Cerakote
$59.99$45.001 in stock -
Shooting Innovations Competition Control Kit – ODG Cerakote
$59.99$45.003 in stock -
Hiperfire Hiperswitch Ambi Safety Selector Set Black
$47.5031 in stock -
Hiperfire Hiperswitch Ambi Safety Selector Set Red
$47.5022 in stock -
Odin Lower Parts Kit W-pistol – Grip For Ar-15
$56.05$47.64212 in stock -
Pof Ambi Safety Selector 50-90 Degree
$53.49$48.148 in stock -
Kak Industries AR15 Lower Parts Kit (LPK) W/ Billet Trigger Guard
$50.00Out of stock -
Bad Bad-ass Ambi Safety Selector Black
$57.00$51.30175 in stock -
Cmmg Receiver Extension Kit Pstl
$58.16$52.3433 in stock -
Radian Talon Safety Selector 4 Lever Black
$66.45$56.48319 in stock -
Radian Talon Safety Selector 4 Lever Tungsten
$66.45$56.4847 in stock -
Radian Talon Safety Selector 4 Lever Fde
$66.45$56.4863 in stock -
Radian Talon Safety Selector 4 Lever Brown
$66.45$56.486 in stock -
Radian Talon Safety Selector 2 Lever Np3
$66.45$56.4822 in stock -
Cmmg Receiver Ext Kit Carbine Ar15
$64.20$57.7848 in stock -
Cmmg Lpk 556 Black
$64.95$58.46491 in stock -
Lbe Lpk 556 No Trig Guard Or Grip
$64.95$58.4650 in stock -
Bcm Pnt Trigger Assembly Ar15
$65.95$59.36101 in stock -
Bcm Pnt Trigger Assembly Ar15
$65.95$59.36168 in stock -
Bad Bad-cass Combat Ambi Safety Selector Black
$65.95$59.3614 in stock -
Fortis Sls Fifty Ambi Safety Selector
$66.45$59.81in stock -
Fortis Fifty Ambi Safety Selector
$66.45$59.81in stock -
BKF AR15 Enhanced Lower Build Kit (No Stock)
$89.99$59.9984 in stock -
Lbe Lpk 556 W-trig Guard And Grip
$69.84$62.8655 in stock -
Spike’s Lpk Standard 556 Black
$73.45$66.11495 in stock -
Bad Bad-ass Ambi Safety Selector Fde
$75.05$67.5561 in stock -
Bad Bad-ass Ambi Safety Selector Stainless
$75.05$67.5533 in stock -
BKF AR15 Enhanced Lower Build Kit
$99.99$69.9935 in stock -
BKF AR15 Enhanced Magpul Lower Build Kit (No Stock)
$99.99$69.9998 in stock -
Bad Bad-ass Ambi Safety Selector Short Throw
$79.95$71.9573 in stock -
Cmmg Lpk Ar15 W-ambi Safety Selector
$83.95$75.5634 in stock -
Radian Talon Safety Selector 4 Lever Np3
$90.20$76.6717 in stock -
Seekins Builders Kit Lpk 556 Black
$89.00$80.1065 in stock -
Bad Bad-cass Full Auto Ambidextrous Safety Selector Black
$93.95$84.5634 in stock -
Hiperfire Edt Designated Marksman Ar15 Trigger Assembly
$94.0541 in stock -
Hiperfire Edt Heavy Gunner Ar15 Trigger Assembly
$94.0515 in stock -
Hiperfire Edt Sharp Shooter Ar15 Trigger Assembly
$94.0531 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
$100.0046 in stock -
Bcm Parts Kit Lower Black – For Ar-15
$119.95$107.9557 in stock -
Bcm Parts Kit Lower Fde – For Ar-15
$119.95$107.9559 in stock -
Bad Enhanced Lpk Mod X
$125.00$112.5046 in stock -
BKF AR15 Enhanced Lower Build Kit W/ SBA3 Brace
$199.99$129.9999 in stock -
Spike’s Lpk Enhanced 556 Black
$156.14$140.5351 in stock -
Spike’s Lpk Enhanced 556 Fde
$160.74$144.6723 in stock -
Hiperfire Hipertouch Elite Ar15 Trigger Assembly
$190.0032 in stock -
Hiperfire Hipertouch Genesis Ar15 Trigger Assembly
$190.008 in stock -
Hiperfire Hipertouch Reflex Ar15 Trigger Assembly
$213.7516 in stock -
Hiperfire Hipertouch Competition Ar15 Trigger Assembly
$237.5042 in stock -
BKF AR15 Enhanced Lower Build Kit W/ PDW Brace
$299.99$249.9924 in stock -
Hiperfire Hipertouch Eclipse Ar15 Trigger Assembly
$261.2545 in stock