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New 2026 AR15 Lower Parts Product Reviews by Verified Buyers on Popular Brands like Radian Weapons, TRYBE Defense, RISE Armament and More! — 1,799 products / 6,345 models

OpticsPlanet.com offers the absolute best online shopping experience for AR15 Lower Parts. Any time you can't decide on which AR15 Lower Parts to buy then have a look at our AR15 Lower Parts Reviews and compare leading brands to identify a AR15 Lower Parts that is best for you. Our customer written product reviews by verified purchasers comprise of recommendations, reviews, ratings and feedback. Get educated purchasing advice for all of our well-known brands.image

Possessing a good understanding plus a complete knowledge of the products you're planning to purchase is critical if you prefer the right products the first time. Our internet product reviews of AR15 Lower Parts will assist you to find the information you want and allow you to recognize which AR15 Lower Parts consumers believe are the best on the market. So before you purchase, make sure to look at our consumer reviews for all our top manufacturers for AR15 Lower Parts.

1,799 Products in Reviews for AR15 Lower Parts Products

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Image of Geissele Super 42 Braided Wire Buffer Spring and Buffer Combo made-in-usa-flag 2 models Geissele Super 42 Braided Wire Buffer Spring and Buffer Combo (194) As Low As (Save Up to $4.11) $81.49 On Sale
Image of DFCO Kung Fu Grip Plug DFCO Kung Fu Grip Plug (13) List: $12.00 (Save 10%) $10.80 Best Rated
Image of DFCO Kung Fu Grip, Black 8 models DFCO Kung Fu Grip, Black (90) As Low As (Save Up to 38%) $20.99 Best Rated
Image of Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer Kaw Valley Precision Stainless Steel Heavy Tungsten Buffer (25) $74.95 Best Rated
Image of RISE Armament Lower Parts Kit Ar-15 Minus Trigger RISE Armament Lower Parts Kit Ar-15 Minus Trigger (49) List: $67.26 $44.99 Best Rated
Image of Radian Weapons Talon Ambidextrous Safety Selector 2-Lever KIT made-in-usa-flag 2 models Radian Weapons Talon Ambidextrous Safety Selector 2-Lever KIT (271) As Low As (Save Up to 30%) $64.95 Best Rated
Image of Wilson Combat Anti-Walk Hammer/Trigger Set Pins 2 models Wilson Combat Anti-Walk Hammer/Trigger Set Pins (137) As Low As (Save Up to 49%) $11.95 Best Rated
Image of Geissele Ultra Duty Lower Parts Kit made-in-usa-flag 2 models Geissele Ultra Duty Lower Parts Kit (66) As Low As (Save 14%) $131.99 On Sale
Image of JP Enterprises Gen 2 Silent Captured Buffer Spring System 8 models JP Enterprises Gen 2 Silent Captured Buffer Spring System (453) As Low As (Save Up to $11.50) $132.95 12% Coupon
Image of Strike Industries Enhanced AR-15 Lower Parts Kit Strike Industries Enhanced AR-15 Lower Parts Kit (105) List: $55.95 (Save $2.00) $53.95 Best Rated
Image of Geissele AR-15 Super 42 Buffer Spring/Buffer Combo For Carbine Receiver Extensions made-in-usa-flag Geissele AR-15 Super 42 Buffer Spring/Buffer Combo For Carbine Receiver Extensions (167) List: $75.00 $74.79 Best Rated
Image of Magpul Industries B.A.D. Lever 2 models Magpul Industries B.A.D. Lever (392) As Low As (Save Up to 19%) $25.99 Best Rated
Image of Tiger Rock AR-15 Mil Spec Stock Buffer Tube 2 models Tiger Rock AR-15 Mil Spec Stock Buffer Tube (49) As Low As (Save Up to 41%) $15.99 Best Rated
Image of Geissele Super 42 Rifle Length Spring Geissele Super 42 Rifle Length Spring (25) List: $34.00 $33.99 Best Rated
Image of JP Enterprises SCS System Buffer Retainer Pin & Spring Kit JP Enterprises SCS System Buffer Retainer Pin & Spring Kit (52) List: $23.97 (Save 46%) $12.99 Best Rated
Image of Magpul Industries AR Rifles MOE-K2+ Grip 4 models Magpul Industries AR Rifles MOE-K2+ Grip (272) List: $24.95 (Save 10%) $22.45 Best Rated
Image of Strike Industries AR Carbine Flat Wire Spring Strike Industries AR Carbine Flat Wire Spring (79) List: $35.06 (Save 32%) $23.99 Best Rated
Image of Strike Industries Extended Bolt Catch Strike Industries Extended Bolt Catch (77) List: $24.95 (Save 32%) $16.99 Best Rated
Image of Geissele Premium AR-15/M4 Mil-Spec Buffer Tube made-in-usa-flag 2 models Geissele Premium AR-15/M4 Mil-Spec Buffer Tube (47) As Low As $66.49 Best Rated
Image of RISE Armament Trigger Anti-Walk Pins AR-15 RISE Armament Trigger Anti-Walk Pins AR-15 (57) List: $26.99 $14.99 Best Rated
Image of Bravo Company Mil-Spec Carbine Stock Hardware Mounting Kit Bravo Company Mil-Spec Carbine Stock Hardware Mounting Kit (42) List: $65.00 (Save 11%) $57.95 Best Rated
Image of Bravo Company MFG End Plate with QD Socket For AR-15 Bravo Company MFG End Plate with QD Socket For AR-15 (70) List: $20.00 (Save 15%) $16.95 Best Rated
Image of Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black (17) List: $92.91 (Save 31%) $63.99 Best Rated
Image of Vltor A5, Spring And Buffer Kit Vltor A5, Spring And Buffer Kit (18) List: $94.95 (Save 10%) $85.46 Best Rated
Image of JP Enterprises Enhanced Carbine Buffer Tube JP Enterprises Enhanced Carbine Buffer Tube (19) List: $62.95 (Save $3.15) $59.80 Best Rated
Image of Strike Industries Enhanced AR-10 Lower Parts Kit Strike Industries Enhanced AR-10 Lower Parts Kit (28) List: $59.95 (Save 10%) $53.99 Best Rated
Image of Primary Weapons Systems EBT Mod 2 End Plate and Castle Nut Primary Weapons Systems EBT Mod 2 End Plate and Castle Nut (114) List: $49.95 (Save 20%) $39.99 Best Rated
Image of Noveske H3 Carbine Buffer Noveske H3 Carbine Buffer (6) List: $66.41 (Save 25%) $49.99 Best Rated
Image of RISE Armament Rave 140 AR Drop-In Trigger made-in-usa-flag 5 models RISE Armament Rave 140 AR Drop-In Trigger (329) List: $149.99 Add to Cart for Your
Special Price Blazin' Deal
Image of KAK AR-15 Carbine Buffer Tube Kit Mil-Spec KAK AR-15 Carbine Buffer Tube Kit Mil-Spec (7) List: $45.00 (Save 28%) $32.50
Image of KAK Industry AR-15 LPK Missing Parts Kit KAK Industry AR-15 LPK Missing Parts Kit (4) List: $9.00 $8.99
Image of LaRue Tactical MBT-2S Trigger LaRue Tactical MBT-2S Trigger (119) List: $134.99 (Save 11%) $119.99 Best Rated
Image of Phase 5 Weapon Systems Inc Extended Bolt Release V3 2 models Phase 5 Weapon Systems Inc Extended Bolt Release V3 (201) List: $59.99 (Save Up to $5.00) $54.99 Best Rated
Image of RISE Armament OpticsPlanet Exclusive RAVE 140 With AR-15 Lower Parts Kit 2 models RISE Armament OpticsPlanet Exclusive RAVE 140 With AR-15 Lower Parts Kit (56) As Low As (Save Up to 30%) $125.00 Blazin' Deal
Image of Geissele Premium AR-15/M4 Mil-Spec Buffer Tube Assembly w/ Super 42 Spring made-in-usa-flag 6 models Geissele Premium AR-15/M4 Mil-Spec Buffer Tube Assembly w/ Super 42 Spring (83) As Low As (Save Up to 22%) $111.99 Free 2 Day Shipping
Image of OpticsPlanet Exclusive RISE Armament RA-242 Enhanced Rifle Trigger made-in-usa-flag OpticsPlanet Exclusive RISE Armament RA-242 Enhanced Rifle Trigger (111) List: $159.00 (Save 39%) $96.47 Blazin' Deal
Image of Strike Industries AR Enhanced Bolt Catch 2 models Strike Industries AR Enhanced Bolt Catch (83) List: $24.12 (Save Up to 36%) $15.99 Best Rated
Image of Geissele Ultra Duty Checkered Takedown Pin Sets made-in-usa-flag Geissele Ultra Duty Checkered Takedown Pin Sets (19) List: $45.86 (Save 36%) $29.19 Best Rated
Image of Bravo Company MFG Gunfighter Grip Mod 3 2 models Bravo Company MFG Gunfighter Grip Mod 3 (139) List: $22.00 (Save $2.05) $19.95 Best Rated
Image of AT3 Tactical FU-BAG AR-15 Lost Parts Kit AT3 Tactical FU-BAG AR-15 Lost Parts Kit (82) $11.99 Best Rated
Image of Dark Storm Industries DS-15 H2 Carbine Length Buffer 4.5 oz Dark Storm Industries DS-15 H2 Carbine Length Buffer 4.5 oz (21) List: $37.99 (Save $2.00) $35.99 Best Rated
Image of Strike Industries Enhanced AR-15 Complete Lower Parts Kit Strike Industries Enhanced AR-15 Complete Lower Parts Kit (70) List: $77.95 (Save $2.00) $75.95 Best Rated
Image of LaRue Tactical MBT-2S Bow Trigger LaRue Tactical MBT-2S Bow Trigger (91) List: $134.99 (Save 11%) $119.99 Best Rated
Image of Rise Armament OPMOD Hex-C AR-15/AR-10 Enhanced Rifle Trigger 6 models Rise Armament OPMOD Hex-C AR-15/AR-10 Enhanced Rifle Trigger (187) List: $169.99 Add to Cart for Your
Special Price Blazin' Deal
Image of OpticsPlanet Exclusive Maxim Defense Industries RDB Roller Delayed Blowback System 2 models OpticsPlanet Exclusive Maxim Defense Industries RDB Roller Delayed Blowback System (41) As Low As (Save Up to 13%) $165.55 Blazin' Deal
Image of Triggertech AR15 Single-Stage Diamond Flat Trigger Triggertech AR15 Single-Stage Diamond Flat Trigger (34) List: $372.99 (Save 13%) $324.99 Best Rated
Image of Geissele Super Stainless Mag Catch with Release Spring made-in-usa-flag Geissele Super Stainless Mag Catch with Release Spring (12) List: $22.00 $21.89 Best Rated
Image of Geissele Super Dynamic 3-Gun Trigger Geissele Super Dynamic 3-Gun Trigger (104) List: $245.00 (Save $16.51) $228.49 Best Rated
Image of OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger made-in-usa-flag 8 models OpticsPlanet Exclusive RISE Armament RA-240 Gen 2 Enhanced Rifle Trigger (73) As Low As (Save Up to 45%) $94.63 Blazin' Deal
Image of Magpul Industries MOE K2 Gun Grip 4 models Magpul Industries MOE K2 Gun Grip (184) List: $20.95 (Save 10%) $18.90 Best Rated
Image of JP Enterprises Gen 2 Tungsten Weight For JPSCS2-15, JPSCS2-10 And JPSCS2-9MM JP Enterprises Gen 2 Tungsten Weight For JPSCS2-15, JPSCS2-10 And JPSCS2-9MM (12) List: $58.56 (Save 24%) $44.49 12% Coupon
Image of Leapers UTG H3 Hard Coat Recoil Buffer for AR15 Carbine Leapers UTG H3 Hard Coat Recoil Buffer for AR15 Carbine (16) List: $63.99 (Save $2.00) $61.99 Best Rated
Image of TRYBE Defense Ambidextrous Mil-Spec Safety Selector TRYBE Defense Ambidextrous Mil-Spec Safety Selector (74) List: $34.99 (Save 43%) $19.99 12% Coupon
Image of Hogue AR-15 Overmolded Rubber Grip with Finger Grooves made-in-usa-flag Hogue AR-15 Overmolded Rubber Grip with Finger Grooves (118) List: $29.95 (Save $1.96) $27.99 Best Rated
Image of Strike Industries Advanced Receiver Extension Buffer Tube 4 models Strike Industries Advanced Receiver Extension Buffer Tube (92) List: $59.95 (Save $1.96) $57.99 Best Rated
Image of Noveske H2 Carbine Buffer Noveske H2 Carbine Buffer (10) List: $51.21 (Save 23%) $39.49 Best Rated
Image of Primary Weapons Systems PWS Enhanced Buffer Tube, Mil-Spec Gen 2 Ratchet Lock Endplate Primary Weapons Systems PWS Enhanced Buffer Tube, Mil-Spec Gen 2 Ratchet Lock Endplate (96) List: $109.95 (Save $10.00) $99.95 Best Rated
Image of KynSHOT AR-15 .223/5.56mm Buffer for High Performance made-in-usa-flag KynSHOT AR-15 .223/5.56mm Buffer for High Performance (9) List: $154.99 $149.99 Best Rated
Image of Leapers UTG Model 4/AR15 Receiver Wedge Leapers UTG Model 4/AR15 Receiver Wedge (57) List: $3.29 (Save 40%) $1.97 Best Rated
Image of KAK AR-15 Mil-Spec Castle Nut KAK AR-15 Mil-Spec Castle Nut (25) List: $5.00 $4.99 Best Rated
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