NBS Enhanced Carbine Flat Wire Buffer Spring - 4011-2500-002
Out of stock
The NBS Stainless Steel Flat Wire Buffer Spring will bring a whole new feel to your shooting experience. Made from 17-4 stainless steel cryo treated flat wire, this spring will decrease the “twang” you normally hear when firing. This type of spring also increases forward pressure to assist in preventing bolt bounce, stripping rounds from the magazine, and positive chambering. The spring creates a notable difference in “feel” when firing, it is much smoother and reduces some of the sharp recoil feel, especially in over gassed rifles. With a cycle life in excess of 250,000 rounds, this is the last spring you will ever need.
AR15 / M16 Buffer Spring – Carbine Length – Flat Wire
- Fits all standard AR15/M16 Carbine Buffer Tubes
- 17-4 Stainless – Cryo Treated
- Weight: 1.8 oz
- 100% USA Made
NBS — Our In-House Brand for Builders Who Demand Reliable Performance and Real Value.
Designed for builders who demand reliable performance and real value without unnecessary hype or inflated pricing. NBS stands for "No Bullshit."
Built on Strong Industry Partnerships
Through the strong partnerships AR15Discounts has built with trusted suppliers and vendors, we regularly gain access to premium components often manufactured by or for leading industry names. By purchasing these in volume, we bring them to you under the NBS label, ensuring proven quality reaches your build at a fair price, without the added cost of extensive marketing.
Quality You Can Trust
Every NBS product is specified to the exacting standards we apply to our own rifles. Each component features precision CNC machining, American-made key components where it counts, robust materials, dependable steels, and durable finishes engineered for long-term reliability. These items are either sourced from reputable OEMs or carefully assembled in-house using established name-brand elements, maintaining consistent excellence throughout the lineup.
Complete Solutions for Serious Builders
From stripped and complete uppers to bolt carrier groups, handguards, lower parts kits, and beyond, NBS provides a unified, affordable selection that allows you to complete confident, high-performing builds.
Backed by a Limited Lifetime Warranty
All NBS products come with our Limited Lifetime Warranty for the original owner, covering defects in materials and workmanship. AR15Discounts stands firmly behind these parts because, as shooters ourselves, we use and trust them, delivering honest value and gear you can rely on.
| Weight | 1.808 oz |
|---|---|
| MPN | 4011-2500-002 |
| UPC | 999997700 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
- boing
- power
- twang
- noise
- bolt
US
Enhanced spring
Very good product so far..my rifle was over gassed and this helped to slow the bolt coming back!
USNBS Enhanced Carbine Flat Wire
I put this flat spring in my ar 15 and it works great. Gets rid of the noise and gives you the power you need sending your bolt forward.
USBoing
stiff spring that goes boing
USGreat Buffer Spring!
Huge difference! No more twang and much more stout!
Works as advertised.
Well made and allows for quiet cycling with a more linear spring rate.
