5.56 Crs-1 5.56mmx45 NATO Quick Detach Suppressor Black
$1,246.88 at Kentucky Gun Co · 2 stores
In stock
Qdss NT-4 Prg 5.56mm NATO QD Rifle Suppressor Black
Knights Armament · Silencers/Suppressors
No ratings yetBest price
$1,312.78at Brownells
In stock checked Oct 21, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $1,312.78checked Oct 21, 2026 | In stock | Buy at Brownells | |
| Kentucky Gun Co | $1,312.78checked Oct 21, 2026 | In stock | Buy at Kentucky Gun Co | |
| Guns.com | $1,205.99Salechecked Oct 21, 2026 | Check store | Buy at Guns.com |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $1,312.78 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $1,312.78 | $1,312.78 | $1,312.78 |
| Guns.com | $1,205.99 | $1,205.99 | $1,205.99 |
| Kentucky Gun Co | $1,312.78 | $1,312.78 | $1,312.78 |
Since Sep 27, 2026.
About this part
The Qdss NT-4 Prg 5.56mm NATO QD Rifle Suppressor Black is a 5.56 / .223 suppressor from Knights Armament. It's sold by 3 stores (2 in stock), from $1,205.99 to $1,312.78. The lowest in-stock price in the last 30 days was $1,312.78 at Kentucky Gun Co.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
Specifications
- Manufacturer
- Knights Armament
- Caliber
- 5.56 mm NATO
- Mount style
- QD Mount
From the manufacturer
KNIGHT'S ARMAMENT QDSS NT-4 PRG 5.56MM NATO RIFLE SUPPRESSOR Recent advancements in suppressor design and manufacturing have enabled KAC to update the venerable Quick Detach Sound Suppressor (QDSS) NT4 suppressor with both Pressure Reduction Technology (PRT) and KAC's patented Purge (PRG) flash reduction. Maintaining the same attachment mechanism and form factor as the legacy QDSS NT4, superior pressure reduction capabilities are added without sacrificing performance or durability. Potential noxious gases from the rifle being fired are pushed forward of the operator, reducing potential exposure and increasing comfort when firing. First round flash is significantly Mfg: Knights Armament
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