September 2025 Gun Deals Archive

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Optics Parts Rifle Shotgun

Browse the best gun deals from September 2025. This archive contains the top-rated firearms, ammunition, and accessories deals from the r/gundeals community during this month.

Filtered by: Parts

Top Deals from September 2025

[PARTS] A.R.M.S. #02 Extended M16A1A2/AR-10 6.5″ Scope Mount - $114.99 | $5 Flat Rate Shipping | Free Ship over $150 | 5% Off Crypto
$114.99
Posted Sep 14, 2025 | 41 | 16
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[Parts] Linemount Retro XM177 / CAR-15 Handguards- 6 Hole | Fits AR15 $24.95 + $4.95 S/H
$24.95
Posted Sep 23, 2025 | 40 | 10
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[parts] Microbest Chrome Ar15 / M16 Premium Bolt Carrier Group - OCKS, c158, HPT/MPI, phos extractor, sprinco, permatex, "blem" - $119, more in comments
$119.00
Posted Sep 05, 2025 | 39 | 11
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[Parts] G17 Gen3 RMR Optic Ready Slide $119.99 Free Shipping w/ Coupon Code GTBR
$119.99
Posted Sep 25, 2025 | 36 | 18
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[parts] BCM 11.5 ELW Mk 2 $820 + $25 shipping. (In stock notification)
$820.00
Posted Sep 09, 2025 | 34 | 11
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[Parts] NBS 16″ 5.56 NATO Midlength Nitride M-LOK Rifle Kit - $305
$305.00
Posted Sep 07, 2025 | 33 | 21
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[Parts] Aero Precision EPC 9 9mm AR-15 Lower Receiver - $119.95 | MFT EXTREME DUTY Polymer Magazine - From $5.95 | Vortex Viper SG Shotgun Enclosed Red Dot – 3 MOA Dot - $209.95
$119.95
Posted Sep 05, 2025 | 29 | 11
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[Parts] Forged DPMS Pattern 80 Percent .308 Lower Receiver - $75.00 w/ SEPT10
$75.00
Posted Sep 18, 2025 | 29 | 6
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[Parts] Faxon AR-15 Forged Receiver Set - $149.99
$149.99
Posted Sep 05, 2025 | 28 | 2
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[Parts] T91 Stock Set + T91 Pistol Grip | Fits AR15 $94.95 + $4.95 S/H
$94.95
Posted Sep 03, 2025 | 27 | 2
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[PARTS] Mossberg 990 Picatinny Stock Adapter $139.95
$139.95
Posted Sep 04, 2025 | 24 | 13
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[Parts] RTB 16" 5.56 Lightweight Upper Receiver - Black | A2 | 12" M-LOK | Without BCG & CH -- $185.57 - Coupon code: BUILDUP20
$185.57
Posted Sep 04, 2025 | 23 | 15
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[Parts] REARDEN - SPB Muzzle Brake - Nitride (# 10005, 10006, 10007 etc) - $72 + Promo code: RUSH8 (Take an ADDITIONAL 8% Off All Suppressors and Parts & Accessories Orders) + *FREE SHIPPING ON $250+
$72.00
Posted Sep 08, 2025 | 22 | 4
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[Parts] Extended P365 Magazine Release On Sale For $24.95 - No Tax / Flat Rate Shipping
$24.95
Posted Sep 21, 2025 | 22 | 9
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[PARTS] Primary Weapons MK118 MOD2 Long-Stroke Piston Upper 6MM ARC - $250 Off MSRP w/Code 250 (Free Shipping/No Tax Outside NC)
$250.00
Posted Sep 23, 2025 | 22 | 18
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[Parts] Yeti Wurks Scorpion Grip/Mag Release/QD Point Sale (25-50% off)
Posted Sep 22, 2025 | 22 | 6
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[Parts] Knight's Armament Long FF RAS KAC MK 12 Mod 1 Rail - $479.95 + shipping
$479.95
Posted Sep 05, 2025 | 21 | 21
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[Parts] Talley Base Ring Combo, Howa 1500, 1" Tube, Low, Black, $36 ($12ish in shipping)
$36.00
Posted Sep 30, 2025 | 20 | 11
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[PARTS] A.R.M.S. #02 Extended M16A1A2/AR-10 6.5″ Scope Mount - $124.99 | $5 Flat Rate Shipping | Free Ship over $150 | 5% Off Crypto
$124.99
Posted Sep 10, 2025 | 19 | 4
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[PARTS] Comstock Armory Low Profile HUB Adapter - $69.75 + shipping with "THEMERCHANT"
$69.75
Posted Sep 05, 2025 | 17 | 8
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