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Dead Air Silencers
SIERRA5 5.56 W/ KEYMO 1/2X28
Item # DAS SIERRA5KM MSRP $979.00FREE SHIPPING
PRODUCT DETAILS
TECH SPECS:
Designed for relentless performance, the Dead Air Sierra 5 delivers pro-grade suppression in an ultra-compact, modular package.
-
Uncompromising Durability — Featuring rugged Cobalt 6 (Stellite) baffles wrapped in a robust stainless steel outer tube, the Sierra 5 is built to endure extreme heat and unwavering full-auto fire—never cutting corners on material or lifespan.
-
Compact Yet Effective — This silencer maintains a remarkably small footprint while offering strong sound and flash suppression. Out of the box, it comes paired with either the KeyMo or Xeno mounting system and is HUB-compatible (1.375-24) to suit your preferred mounts.
-
Performance Specs
-
Caliber Rating: 5.56 NATO & .224 Valkyrie — capable of handling over 2,200 ft·lbs energy
-
No barrel length restrictions, ensuring compatibility with short firearms and full-auto use
-
-
Size & Weight Options:
-
No adapter: 4.87″ | 10.8 oz
-
With Xeno mount: 5.72″ | 13.3 oz
-
With KeyMo mount: 6.27″ | 15.4 oz
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Functional Design — Finished in black Cerakote®, the knurled outer tube enhances grip and helps dissipate heat faster, combining utility with aesthetic appeal.
-
User-Tested Reliability — Reviewers praise its compact, reliable performance: “It functions as well or better than much larger cans” and “locks up tight... actually quiet for four inches of baffles.”
Why Choose the Sierra 5?
The Sierra 5 is the ideal choice for operators and enthusiasts seeking a tough, compact 5.56 silencer that delivers real-world performance:
-
Built for hard use with long-term durability
-
Modular mounting with HUB, Xeno, or KeyMo systems
-
No barrel-length or fire-mode limitations
-
Proven performance in tight packages
| Specification | Details |
|---|---|
| Manufacturer | Dead Air Silencers |
| Model | Sierra 5 |
| Caliber Compatibility | 5.56 NATO / .223 Rem / .224 Valkyrie |
| Energy Rating | Up to 2,200 ft·lbs |
| Mounting System | Available in KeyMo or Xeno; HUB-compatible (1.375x24) |
| Material | Cobalt 6 (Stellite) baffles with stainless steel tube |
| Finish | Black Cerakote® |
| Length (No Adapter) | 4.87" |
| Length (With Xeno) | 5.72" |
| Length (With KeyMo) | 6.27" |
| Weight (No Adapter) | 10.8 oz |
| Weight (With Xeno) | 13.3 oz |
| Weight (With KeyMo) | 15.4 oz |
| Diameter | 1.55" |
| Barrel Restrictions | None — rated for short barrels and full-auto fire |
| Sound Suppression | Optimized for reduced sound and flash signature |
| Exterior Design | Knurled tube for grip & heat dissipation |
| Country of Origin | USA |
Questions 0
Ask a QuestionProven Arms & Outfitters A bolt-action rifle requires the shooter to manually operate a bolt to load a round, eject the spent casing, and chamber the next round. In contrast, a semi-automatic rifle is designed to automatically eject the spent casing and chamber a new round with each pull of the trigger. Semi-automatic rifles offer faster follow-up shots, while bolt-action rifles are typically more accurate due to their design.
SORT BY MOST RECENT
No Customer Review on this product
PRODUCT DETAILS
TECH SPECS:
Designed for relentless performance, the Dead Air Sierra 5 delivers pro-grade suppression in an ultra-compact, modular package.
-
Uncompromising Durability — Featuring rugged Cobalt 6 (Stellite) baffles wrapped in a robust stainless steel outer tube, the Sierra 5 is built to endure extreme heat and unwavering full-auto fire—never cutting corners on material or lifespan.
-
Compact Yet Effective — This silencer maintains a remarkably small footprint while offering strong sound and flash suppression. Out of the box, it comes paired with either the KeyMo or Xeno mounting system and is HUB-compatible (1.375-24) to suit your preferred mounts.
-
Performance Specs
-
Caliber Rating: 5.56 NATO & .224 Valkyrie — capable of handling over 2,200 ft·lbs energy
-
No barrel length restrictions, ensuring compatibility with short firearms and full-auto use
-
-
Size & Weight Options:
-
No adapter: 4.87″ | 10.8 oz
-
With Xeno mount: 5.72″ | 13.3 oz
-
With KeyMo mount: 6.27″ | 15.4 oz
-
-
Functional Design — Finished in black Cerakote®, the knurled outer tube enhances grip and helps dissipate heat faster, combining utility with aesthetic appeal.
-
User-Tested Reliability — Reviewers praise its compact, reliable performance: “It functions as well or better than much larger cans” and “locks up tight... actually quiet for four inches of baffles.”
Why Choose the Sierra 5?
The Sierra 5 is the ideal choice for operators and enthusiasts seeking a tough, compact 5.56 silencer that delivers real-world performance:
-
Built for hard use with long-term durability
-
Modular mounting with HUB, Xeno, or KeyMo systems
-
No barrel-length or fire-mode limitations
-
Proven performance in tight packages
| Specification | Details |
|---|---|
| Manufacturer | Dead Air Silencers |
| Model | Sierra 5 |
| Caliber Compatibility | 5.56 NATO / .223 Rem / .224 Valkyrie |
| Energy Rating | Up to 2,200 ft·lbs |
| Mounting System | Available in KeyMo or Xeno; HUB-compatible (1.375x24) |
| Material | Cobalt 6 (Stellite) baffles with stainless steel tube |
| Finish | Black Cerakote® |
| Length (No Adapter) | 4.87" |
| Length (With Xeno) | 5.72" |
| Length (With KeyMo) | 6.27" |
| Weight (No Adapter) | 10.8 oz |
| Weight (With Xeno) | 13.3 oz |
| Weight (With KeyMo) | 15.4 oz |
| Diameter | 1.55" |
| Barrel Restrictions | None — rated for short barrels and full-auto fire |
| Sound Suppression | Optimized for reduced sound and flash signature |
| Exterior Design | Knurled tube for grip & heat dissipation |
| Country of Origin | USA |
SORT BY MOST RECENT
No Customer Review on this product
Questions 0
Ask a QuestionProven Arms & Outfitters A bolt-action rifle requires the shooter to manually operate a bolt to load a round, eject the spent casing, and chamber the next round. In contrast, a semi-automatic rifle is designed to automatically eject the spent casing and chamber a new round with each pull of the trigger. Semi-automatic rifles offer faster follow-up shots, while bolt-action rifles are typically more accurate due to their design.
