
Best Gun Parts Deals — Uppers, Lowers, Triggers, BCGs & More (April 2026)
Track gun parts prices from 40+ retailers. Whether you're building an AR-15 from scratch or upgrading components, find the best deals on lowers, uppers, BCGs, triggers, and more. Prices updated hourly.
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Magpul PMAG 30 A4/M4 GEN 2 MOE 5.56 30rd Magazine - MAG571-BLK

Surplus AR-15 Mil-Spec Bare Bones Lower Build Kit

NBS Discount Assembled Gas Block + Stainless Steel Tube

Toolcraft Logo'd Carpenter 158 Nitride Full-Auto BCG & PSA AR-15 Charging Handle 7075 T6 Forged Mil-Spec

CMC AR Trigger Single-Stage Flat Drop In - 91503

NBS Lower Parts Kit w/ Polymer Trigger For Glock 19

Ballistic Advantage 12.5″ 5.56 Government Profile Carbine Length AR 15 Barrel Modern Series

FN SCAR 17S NRCH 7.62 NATO 16.25" Barrel 20-Rounds

PSA 16" Pistol-Length 300AAC Blackout Nitride 13" Lightweight Hex M-Lok Upper - No BCG or CH

Kaw Valley Precision AR-15 .750 Adjustable Low Profile Gas Block

American Tactical ALPHA MAXX Omni Hybrid Battle Field Green 5.56 7.5" Barrel 60-Rounds w/ Brace

Ruger 10/22 Carbon Fiber Black / White Speckle .22 LR 16.1" Threaded Barrel 10-Rounds

Spike's Tactical AR-15 Lower Receiver - Spider - Fire/Safe

MFT BATTLELINK Minimalist Stock – Mil Spec Black

AR-15 CORE SERIES, MID-LENGTH GAS

PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight Hex M-Lok Upper No BCG or CH

On Sale SONICORE Skarv 22 - 22LR 1/2-28 Suppressor Black

Great Deal!4.67 (3) CVA Scout V2 Takedown 44 Mag 22" Single Shot Rifle - Stainless | Black
Precision Defense Plan B Suppressor Mount Muzzle Brake - 1/2x28

PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13" Lightweight Hex M-Lok Upper No BCG & CH, ODG

PSA 8.5" Pistol-length 300AAC Nitride 7" Lightweight M-Lok Upper with BCG & CH

5.56 Double Mag Panel 30rd w/ Magna Combo

Discount Mil-Spec Lower Build Kit
Geissele Automatics Airborne Charging Handle - Black

PSA 7" Phosphate 1/7 Pistol-Length 5.56 NATO Marauder AR-15 Upper, Black - No BCG or CH

Rock Island Armory TM22 Lite .22 LR 18" Barrel 10-Rounds

Diamondback DB15 Combo FDE 5.56 / .300 AAC Blackout 16" Barrel 30-Rounds

NBS Forward Assist & Dust Cover Upper Parts Kit
Heckler & Koch CC9 9mm 12 Round Magazine - Extended Floor Plate

NBS Mil-Spec M4 Carbine Stock

Magpul PMAG M3 300 BLK 30RD – Black
SureFire SOCOM 4 Prong 5.56 Flash Hider - Suppressor Adapter - 1/2x28

Springfield Armory 2020 Redline OD Green 6.5 Creedmoor 20" Barrel 3-Rounds

On Sale4.0 (1) BERETTA 30X Tomcat 32 ACP 2.8" 8rd w/Threaded Barrel - Black

SilencerCo Sparrow 22 Suppressor .22LR 5.08"

Aero Precision AR-15 BREACH Ambidextrous Charging Handle

M1 GARAND BARREL, 6.5X55 SWEDISH

Dirty Bird Mil-Spec Style Ambidextrous Safety Selector – Black

Trinity Force Omega Mil Spec Stock & Buffer Kit – Black

Aero Precision AR-15/AR-10 Enhanced Carbine Buffer Tube

Rogue Magna Double Pistol Mag Pouch

Faxon Twenty Toucan .22 Cal Suppressor - Black

Magpul PMAG 30 AR-15/M4 GEN M3 5.56 NATO AR-15 Magazine - Black

PSA 10.5" Pistol-Length 300AAC Blackout Nitride 9" Lightweight Hex M-Lok Upper - With BCG & CH

PSA Stealth AR-15 Complete Lower Magpul MOE Edition No Mag - 5165500387

PSA 20" Rifle-Length 5.56 NATO 1/7 Stainless Steel 15" Lightweight M-lok Upper With BCG & Charging Handle


PSA Magpul MOE Lower Build Kit & 10 PMAG Gen 2 5.56x45 30rd Magazines

PSA Classic AR-15 Complete Pistol Lower W/HAR-15 Brace, Black

Ruger BX-25 10/22 OEM Magazine Value Pack .22 LR 25-Rounds 2-Pack

PSA 11.5" 5.56 NATO 1/7 Nitride 10.5" Lightweight M-Lok Upper - Without BCG or CH

NBS Lower Parts Kit For Glock 19

PSA 5.7 Rock Complete RK1 Optics Ready W/ Gold Barrel, Black

PSA AR-15 Complete Lower Magpul MOE Edition - Olive Drab Green, No Magazine 46463

Smith and Wesson Shield Plus Optics Ready 30 Super Carry 3.1" Barrel 13/16-Rounds 2 Mags

Smith and Wesson M&P9 Shield Plus 9mm 3.1" Barrel 13-Rounds Manual Safety w/ 6 Mags, Bag

Palmetto State Armory Magpul MOE Lower Build Kit, Black
Troy Industries A3 Upper Receiver 16” 5.56 NATO Barrel - 15.125" X-Series Rail - Black

AR-15 300 BLACKOUT CORE SERIES


Freedom Finger Triggers Taurus TX 22 FRT Stainless

AR-15 ULTRALIGHT BARREL, MID GAS, CHROME-LINED

Beretta APX A1 Carry 9mm 3.3" Barrel 8-Rounds Optics Ready

Omega AR-15 Lower Build Kit

Howa Pre-Fit- Stock Model Heavy Target Contour

NBS AR-15 Assembled Upper Receiver
Sons of Liberty Gun Works Liberty Fighting Trigger Mil-Spec .154"

Dirty Bird AR-15 Lower Parts Kit Minus FCG & Pistol Grip


Pro Mag Industries Taurus TX22 Magazine .22 LR 34-Rounds

PSA AR-15 Upper 5.56 16" Mid-Length Nitride 13.5" M-Lok - 5165448513


Presma AR-15 Ambidextrous Charging Handle

Dirty Bird AR-15 17-7 Stainless Steel Carbine Buffer Spring
CMMG AR-15 Lower Parts Kit - No Grip/FCG

NBS Upper Parts Kit For Glock 19

Aero Precision M4E1 Stripped Lower Receiver

NBS Budget AR-15 Mil-Spec Charging Handle

G-Force GF99 Deluxe 12 GA-3" 20" Barrel 5-Rounds

UTG Ambidextrous 45/90 Safety Selector

NBS Mil-Spec Lower Parts Kit Minus FCG & Pistol Grip

Dirty Bird AR-15 Anti-Walk Pin Set – Stainless Steel

M14/M1A MEDIUM WEIGHT BARREL

Glock 19 Gen 6 MOS 9mm 4.02" Barrel 15-Rounds

NBS AR-15 Ultralight M-LOK Free Float Handguard

PSA 8.5" Pistol-length 300AAC Blackout Nitride 7" Lightweight M-Lok Upper With BCG & CH - 5165449777


NBS AR-15 4.9 OZ Heavy Buffer

Beretta APX A1 Tactical OD Green 9mm 4.8" Barrel 21-Rounds

CMC Single-Stage Drop-In Trigger

AR-15 CORE SERIES, CARBINE GAS

Smith and Wesson M&P 22 Magnum .22 WMR 4.3" Barrel 30-Rounds Optics Ready


Dirty Bird AR-15 Stripped Upper Receiver

Breek Arms Warhammer AR-15 Charging Handle

Great Deal!4.75 (4) GFORCE ARMS Saddlehorn 357 Mag 20" 10rd Lever Action Rifle - Case Hardened | Turkish Walnut

Dirty Bird AR-15 Lower Receiver Pin and Spring Kit

Smith and Wesson M&P Shield EZ 30 Super Carry 3.67" Barrel 10-Rounds Thumb Safety

Discount Mil-Spec Carbine Buffer / Receiver Extension Kit

AC Unity AK47 7.62x39mm 60rd Magazine

PSA PA-10 Gen3 AR-10 Complete Lower .308 MOE EPT w/ Over Molded Grip

American Tactical Alpha Maxx 5.56 7.5" Barrel 60-Rounds

Ballistic Advantage 16″ .223 Wylde SPR Fluted Midlength Stainless Steel Premium Series – 1:8 Twist

MOLLE Double Ready Mag Pouch
Retailers Tracked for Gun Parts Deals
We currently track 108 gun parts listings from 8 verified retailers, including Grab A Gun, Palmetto State Armory, AR15 Discounts, Primary Arms, Criterion Barrels, and 3 more.
Today's lowest gun parts price is $7.95. All prices are fetched hourly directly from retailer product pages and cross-referenced against 6 months of historical pricing data to generate our AI deal scores.
Frequently Asked Questions
Where can I find the best gun parts deals online?
Palmetto State Armory leads in value-tier AR parts. Aero Precision offers excellent quality for stripped lowers and M4E1 uppers. Brownells has the widest aftermarket catalog. We track all of them hourly.
What are the best gun parts brands right now?
For AR-15 builds in 2026: Aero Precision (lowers/uppers), Ballistic Advantage (barrels), BCM (complete uppers), Geissele (triggers), Toolcraft (BCGs), and Magpul (furniture) offer the best value-to-quality ratios.
Do I need an FFL for gun parts?
Only for serialized components. The stripped lower receiver is the legally-defined "firearm" and requires FFL transfer. All other components — uppers, barrels, BCGs, triggers, handguards — ship directly to your door in most states without an FFL.
How often are gun parts prices updated?
Our scraper fleet re-scans every retailer hourly. Flash sales on AR parts — especially stripped lowers — can sell out within hours. Our hourly refresh rate means you see deals before they sell out.
Where can I find cheap AR-15 lowers?
Palmetto State Armory, Aero Precision, and Anderson Manufacturing offer the best value stripped lowers. PSA and Anderson lowers regularly drop to $39-69 during sales. Our AI flags these price drops automatically.