Taurus T4SA 5.56 NATO
Model: 345561611
Taurus T4SA 5.56 NATO
Model: 345561611
Full Specifications
Threaded 1/2x28 barrel: compare 5.56 / .223 suppressor prices.
About This Firearm
The Taurus T4SA is a KeyMod-handguard semi-automatic AR-15 in 5.56 NATO built for range shooting and home defense. Taurus no longer makes it, so it is a used buy. Taurus rated the barrel for a service life of 10,000 rounds and said that figure beat the military requirement by 4,000 rounds.
It comes with one 30-round Magpul PMAG, a Magpul CTR stock that locks in place once it is set, and a Magpul MOE grip with a storage core in the base. The top rail is a continuous 1913 section with T-shaped index marks, so an optic that comes off goes back in the same slot, and milled heat vents that Taurus said cool the rail without throwing mirage. Quick-detach sling sockets are built into the KeyMod slots and into both sides of the buttstock. No sights are fitted, and the muzzle thread is unmarked, so a brake or a suppressor mount means measuring it.
If you're cross-shopping, a Smith & Wesson M&P 15 Sport III has an MSRP of $799 with a free-floating M-LOK handguard, where the T4SA uses the older KeyMod slot pattern. An Anderson AM-15 has an MSRP of $699, carries 0.5 lbs more and also uses M-LOK. Buying a T4SA second hand means buying its light and hand stop second hand too, or adapting M-LOK hardware to it.
Best For
Strengths & Limitations
- The bolt is magnetic particle inspected, and bolt and carrier are both Melonite treated, as is the barrel on every interior and exterior surface.
- The buffer tube assembly is mil-spec with a staked castle nut and an H2 buffer, which is heavier than the plain carbine buffer.
- Taurus designed, engineered and built it in the United States, at its Miami headquarters.
- Taurus catalogued 18 T4SA models, so a used listing needs reading closely to confirm it is the 16-inch KeyMod rifle in black.
- It shipped in a cardboard box with no case and no spare magazine.
- There is no factory warranty route left, because Taurus no longer lists a rifle of any kind.
Category Rankings
How the Taurus T4SA 5.56 NATO ranks among full-size 5.56 NATO rifles.
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Alternatives to Consider
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Aero Precision M4E1 5.56 NATO
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— |
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Sig Sauer M400 Tread V2 5.56 NATO
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$923.99 |
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Ruger AR-556 5.56 NATO
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$861.99 |
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Smith & Wesson M&P 15 Sport III 5.56 NATO
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$699.00 |
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Smith & Wesson M&P 15 Sport II 5.56 NATO
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$799.99 |
Frequently Asked Questions
Does it take standard AR-15 magazines?
Yes. Any AR-pattern magazine feeds it, and the one in the box was a Magpul PMAG Gen M2 with a witness window.
Was there an M-LOK version?
Yes. Taurus also sold this rifle with an aluminum M-LOK handguard, and both versions share the same 1913 top rail and gas block.
What finishes did it come in?
Black, plus Cerakote Elite Sand and Cerakote Jungle on the frame.
What sights can be fitted?
Rail-mounted ones. The handguard's top rail meets the receiver rail at the same height, so a folding front sight goes on the handguard and a rear on the receiver.
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