ATTENTION - DUE TO DEMAND, CURRENT LEAD TIME ON 9MM & .223/5.56 FMJ IS APPROX. 3 DAYS

Subsonic Ammo | Fenix Ammo

Subsonic Ammo includes only Fenix products with explicit product-level subsonic evidence. The selection covers .300 Blackout 190gr FXP and 220gr FMJ loads, 9mm 147gr FMJ and Match Grade loads, .40 S&W 180gr FMJ, and .45 ACP 230gr FMJ and FXP Hollowpoint products. Subsonic evidence is separate from projectile construction and use classification. Grain weight alone does not qualify a product, and the label does not promise silence, suppressor compatibility, or universal firearm function.

7 products
.300 Blackout 190gr FXP Subsonic (100 ct.)
.300 Blackout 190gr FXP Subsonic (100 ct.)
$134.00
.300 Blackout 220gr FMJ (Subsonic) (100 ct.)
.300 Blackout 220gr FMJ (Subsonic) (100 ct.)
$108.75
.45 ACP 230gr FMJ (250 ct.)
.45 ACP 230gr FMJ (250 ct.)
$90.00
.45 ACP 230gr FXP (Hollowpoint) (100 ct.)
.45 ACP 230gr FXP (Hollowpoint) (100 ct.)
$85.00
9mm 147gr Match Grade (250 ct.)
9mm 147gr Match Grade (250 ct.)
$95.00
.40 S&W 180gr FMJ (250 ct.)
.40 S&W 180gr FMJ (250 ct.)
$86.25 Sold out
9mm 147gr FMJ (250 ct.)
9mm 147gr FMJ (250 ct.)
$72.00

Every Included Load Has Product-Level Evidence

The .300 Blackout products make the evidence explicit in their titles: a 190gr FXP Subsonic load and a 220gr FMJ Subsonic load, each in a 100-round package. Fenix states a velocity of 1,000 FPS for both. Product-level descriptions also identify the 9mm 147gr FMJ and 147gr Match Grade products, .40 S&W 180gr FMJ, and .45 ACP 230gr FMJ and FXP Hollowpoint products as subsonic. These facts apply to the named products rather than every load sharing the same caliber, grain weight, projectile type, or use classification. The collection therefore requires explicit evidence for each individual product.

.300 Blackout Includes Specific Setup Notes

Fenix states that the .300 Blackout 190gr and 220gr subsonic products were tested in several rifles with barrel lengths from 8 inches to 10.5 inches. The product notes also explain that rifle configurations vary and that gas settings or buffer weights may require adjustment. This context belongs specifically to those .300 Blackout loads and is not a universal function claim for every firearm. The handgun products have separate published specifications and product-level subsonic descriptions. None of this evidence means silent operation, establishes a sound level, or guarantees suppressor compatibility. Firearm-specific notes must remain attached to the exact product for which Fenix publishes them.

Frequently Asked Questions

Does Subsonic Ammo mean silent ammunition?

No. Subsonic describes ammunition intended to remain below the speed of sound. It does not eliminate all sound or guarantee a sound level.

Is every 147gr 9mm product subsonic?

Not automatically. Fenix explicitly describes its 147gr FMJ and 147gr Match Grade products as subsonic. Grain weight alone is not enough.

What setup evidence applies to Fenix .300 Blackout Subsonic Ammo?

Fenix states that rifle setups vary and may require gas-setting or buffer-weight adjustments. Review the exact 190gr or 220gr product page before ordering.

Which non-300 Blackout products have subsonic evidence?

Fenix product descriptions identify 9mm 147gr FMJ and Match Grade, .40 S&W 180gr FMJ, and .45 ACP 230gr FMJ and FXP Hollowpoint products as subsonic.