Last updated August 01, 2026
300 BLK Ammo: Buy Now or Wait?
Verdict based on 13 tracked new (per round) r/gundeals deals, priced per round.
Built from GunDealAlerts’ own price record — 12,504 tracked prices across 1,919 products from 891 retailers since 2024.
The last tracked 300 BLK Ammo deal was $0.709/round on Jun 15, 2026. The lowest ever tracked is $0.450/round on Jul 1, 2025.
Bottom line
Buy now if the price is below $1.
Below $0 is a steal — these don't sit around.
$1 is average. Above $1, wait.
Set a free alert at $1 →
Verdict thresholds
Steal
< $0
Buy now
Real Deal
$0–$1
Worth grabbing
Average
$1–$1
Wait or alert
Pass
> $1
Above market
Reality check
Historical low
$0
tracked Jul 1, 2025
Tracked average
$1
Highest tracked
$1
Deals tracked
13
Tracked since the 300 BLK Ammo first appeared on r/gundeals. Each price point comes from a verified post — click through any deal below for the source thread.
5 cheapest tracked 300 BLK Ammo deals
| Price | Deal | Dealer | Date |
|---|---|---|---|
| $13 | [Ammo] AAC 300 blackout 220 grain OTM 20rd box. $12.99. 65 c… | palmettostatearmory.com | Apr 26, 2025 |
| $13 | [Ammo] PSA Subsonic 300 BLK | $12.99/box | .65 cpr | palmettostatearmory.com | Apr 23, 2025 |
| $15 | [AMMO] Winchester 300 Blackout Super Suppressed 200gr Subson… | aeammo.com | Feb 24, 2026 |
| $16 | [Ammo] Underwood 300 AAC Blackout Ammo 110 Grain Nosler Varm… | midwayusa.com | Sep 17, 2025 |
| $48 | [Ammo] Hornady American Gunner 80897 300 Blackout 125 grain … | alpinerange.com | Jun 03, 2025 |
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Set free price alert →Frequently Asked Questions
Should I buy a 300 BLK Ammo now?
Buy if it's below $1. Below $0 is a steal. Above $1, set a free alert and wait.
What's the lowest a 300 BLK Ammo has ever been?
$0, tracked Jul 1, 2025 — verified across 13 tracked r/gundeals posts. That is the record low, not today’s price.
What price should I set my 300 BLK Ammo alert at?
$1 for the best signal-to-noise. Lower ($0) means fewer alerts but every one is a steal.
About the editor
GDA Editorial Team · Editorial team, GunDeal Alerts
We track every priced post on r/gundeals, fingerprint products, and verify dealer reputations. This page is updated as new deal data arrives.