Current Value Of A KAC SR 15 (2026 Price Guide)

The Knight’s Armament Company (KAC) SR-15 is a top-tier rifle that commands a premium price due to its exceptional engineering, reliability, and combat-proven heritage. Understanding the specific factors that influence its market value—from its generation and barrel length to its legal status in different states—is crucial for any owner looking to sell. This guide breaks down the key elements that determine your SR-15’s true worth, ensuring you can navigate the selling process with confidence and secure a fair price.

What Determines Your KAC SR-15’s Worth

The value of a KAC SR-15 is determined by a combination of its specific model, condition, and market demand. Key factors include the generation, with recent Mod 2 and E3.2 variants being the most sought-after, and barrel length, where versions under 16 inches are regulated as SBRs and command significantly higher prices. Because these rifles are built with proprietary, high-endurance components like the E3 bolt, they are renowned for their durability and tend to hold their value exceptionally well, even with a high round count, distinguishing them from standard AR-15 platforms.

2026 Price Breakdown by Generation

Older Generations

While now surpassed by newer iterations, older generations of the KAC SR-15 laid the groundwork for the rifle’s legendary reputation. In previous years, these models were commonly available for around $2,000, a price point that seems modest compared to today’s market. These earlier rifles, while lacking some of the advanced features of the Mod 2 or E3.2, are still highly regarded for their KAC-level quality and construction. They represent an accessible entry point into the KAC ecosystem for some buyers, though they fetch a lower price than their modern counterparts.

On the current market, these older models hold their value primarily due to the Knight’s Armament name. However, they face stiff competition from the enhanced features and improved performance of the latest variants. Sellers should expect a lower valuation compared to a Mod 2, as the market places a significant premium on the updated gas systems, ambidextrous controls, and other refinements found in the newer rifles. Their value is more closely tied to collectors or buyers specifically seeking a legacy model rather than those wanting the latest technology.

Mod 2 Variants

The introduction of the Mod 2 marked a significant evolution for the SR-15, solidifying its position at the top of the market and driving its value into a premium bracket. A used 16-inch Mod 2 rifle is often priced between $2,900 and $3,500, reflecting a substantial increase over older generations. This valuation is a direct result of the Mod 2’s advanced features, including the improved URX 4 handguard and the highly durable E3 bolt, which are recognized by discerning shooters as major performance enhancements worth the higher cost.

The desirability of the Mod 2 is rooted in its reputation for flawless reliability and superior engineering. Features such as the fully ambidextrous lower receiver and the finely tuned mid-length gas system contribute to a smoother shooting experience and broader appeal. These factory-integrated upgrades mean that the rifle is considered “complete” out of the box, making it a benchmark for performance that holds its value exceptionally well against both standard AR-15s and other high-end competitors in the used firearms marketplace.

E3.2 Variants

As the latest evolution in the SR-15 line, the E3.2 variants represent the pinnacle of KAC’s rifle development and command the highest values on the new and used markets. These models, which often fall in the $2,900 to $3,500 price range for a 16-inch rifle, incorporate the most recent refinements, including the updated E3.2 bolt that offers enhanced durability and reliability. This new bolt design further solidifies the rifle’s reputation as a tool built for extreme longevity, a key factor that savvy buyers are willing to pay a premium for.

A major selling point that underpins the E3.2’s high valuation is the exceptional service life of its components. The E3 bolt, for example, is warrantied for at least 20,000 rounds, giving buyers immense confidence in the longevity of a used rifle. This reputation for durability means that even a well-used E3.2 model retains a significant portion of its original value, as the core components are engineered to withstand far more use than typical firearms, making it a secure investment for both shooters and collectors.

SBR/CQB Variants

The short-barreled variants of the SR-15, particularly the 11.5-inch CQB models, occupy the most valuable tier in the KAC lineup. Due to their compact size and high demand, the upper receiver groups alone can command prices ranging from $2,800 to $4,000. This immense value is driven by their reputation as elite tactical tools and their relative scarcity compared to the more common 16-inch rifles. These uppers are often sought by enthusiasts looking to build a premium, compact firearm on a separate lower receiver.

A complete, factory-built KAC SR-15 Short-Barreled Rifle (SBR) is a National Firearms Act (NFA) item, which adds another layer of complexity and value. These complete SBRs regularly sell in the $4,000 to $6,000 range, reflecting their status as top-tier firearms that require federal registration. The combination of KAC’s unparalleled quality, the desirability of the CQB platform, and the NFA regulations makes these rifles the most expensive and sought-after models in the entire SR-15 family, representing a significant investment for serious collectors and shooters.

How Modifications Affect Value

When it comes to modifying a KAC SR-15, less is often more for preserving its value. A common mistake that can negatively impact resale price is replacing the stock Knight’s Armament two-stage match trigger. This component is highly regarded within the firearms community and is considered comparable to many high-end aftermarket options. Swapping it out is generally not seen as an upgrade and may deter potential buyers who are specifically seeking the rifle’s renowned factory performance, thus potentially lowering the offers you receive.

While the market for value-adding modifications lacks a clear consensus, the safest approach for maintaining your SR-15’s worth is to keep it as close to its original factory configuration as possible. High-end optics or lights can be appealing, but sellers often find they can achieve a better overall return by selling these expensive accessories separately from the rifle. The core value of a KAC SR-15 is intrinsically tied to its factory-engineered perfection, and deviating from that standard rarely results in a higher sale price for the base rifle itself.

Regional Price Variations in 2026

The value and legality of a KAC SR-15 can vary dramatically depending on state laws, creating significant regional price differences. In California, the SR-15 is specifically banned by name, making ownership of a complete factory rifle illegal. This has led to a unique workaround where residents purchase a compliant KAC SR-30 lower receiver and pair it with an SR-15 upper, as the lower is the serialized firearm. This legal complexity severely restricts the market and alters the rifle’s value proposition within the state, creating a niche demand for specific, compliant configurations.

Similarly, in New York, the SR-15’s standard features, such as its pistol grip and adjustable stock, would classify it as an illegal assault weapon under the SAFE Act. While not banned by name, the rifle is effectively prohibited in its factory form. A potential path to compliance involves converting it to a manually operated, bolt-action firearm, a drastic modification that fundamentally changes its function and significantly impacts its value. These stringent regulations in restrictive states mean the rifle’s market is virtually nonexistent compared to states with more permissive firearm laws.

Online vs Local Sales

When selling a KAC SR-15 locally as a private transaction between residents of the same state, the legal requirements can vary significantly by state and municipality. While a bill of sale is not always federally required, it is a highly recommended document for both parties. Creating a detailed record of the transaction—including the buyer’s and seller’s information, the firearm’s serial number, and signatures—provides a crucial paper trail that documents the transfer of ownership and offers legal protection for the seller after the sale is complete.

For selling to a buyer in another state, federal law is unequivocal: the transaction must be processed through a Federal Firearms Licensee (FFL). As the seller, you are required to ship the SR-15 to an FFL dealer located in the buyer’s state of residence. The buyer must then visit that dealer to complete the necessary federal Form 4473 and undergo a background check before they can legally take possession of the rifle. This non-negotiable process ensures the transfer complies with all federal regulations governing interstate firearm sales.

Shipping the SR-15 requires strict adherence to carrier policies and federal law. You must declare to the carrier, such as UPS or FedEx, that the package contains a firearm. The rifle must be unloaded, and the box cannot contain any ammunition. Furthermore, the package must have no external markings that indicate its contents. It is critical to follow the carrier’s specific rules; for example, UPS requires firearm shipments to be processed at a main customer center or through a scheduled pickup, not at a retail UPS Store location.

The FFL Buying Advantage

Selling your KAC SR-15 to a gun dealer holding a Federal Firearms License (FFL) offers a fast and hassle-free transaction, but it comes at a cost. Dealers typically offer between 50% and 70% of a firearm’s used retail value to account for their overhead, time on the shelf, and profit margin. However, for a highly desirable and quick-selling rifle like the SR-15, you can expect an offer toward the higher end of that spectrum. One estimate suggests a trade-in value of approximately 65% of its private party worth.

The primary advantage of selling to an FFL is the immediate and secure nature of the sale. You avoid the complexities of finding a private buyer, verifying their eligibility, and navigating the legal requirements of a transfer, especially for an interstate sale. While a private sale will almost certainly yield a higher financial return, the trade-off is the significant time and effort required to market the rifle and manage the logistics. The FFL option provides a straightforward path to cash, making it an attractive choice for sellers who prioritize convenience over maximizing profit.

What Increases Your Offer

A pristine rifle will always command the best price, so a thorough pre-sale cleaning is essential. Before listing your KAC SR-15, perform a detailed field strip and meticulously clean the barrel, bolt carrier group, and lower receiver to remove all carbon buildup and residue. Using high-quality, firearm-specific solvents and lubricants is key. Avoid common mistakes like using abrasive metal brushes on the finish or over-oiling, which can attract dirt. Finally, perform a function check after reassembly to ensure it is in perfect operational condition for the buyer.

High-quality photography is non-negotiable for attracting top-dollar offers, particularly in online marketplaces. Use soft, diffuse natural light and a simple, non-reflective background to eliminate glare and accurately showcase the rifle’s finish. Take numerous sharp, in-focus pictures from all angles. Be sure to include detailed close-ups of all manufacturer markings, the bore, any modifications, and any areas of wear. This transparency builds trust with potential buyers and justifies a premium asking price. A modern smartphone camera is more than capable of capturing excellent images.

For a high-value firearm like a KAC SR-15, obtaining a professional appraisal is a wise investment that can significantly increase buyer confidence. An appraisal serves to verify the rifle’s authenticity as a factory-built model and provides an expert, unbiased assessment of its condition and true market value. Presenting this documentation to potential buyers substantiates your asking price and distinguishes your listing from others. It signals that you are a serious seller who understands the asset you own, encouraging buyers to make a strong, confident offer.

When to Sell Your kac sr 15

While tactical rifles like the KAC SR-15 are less subject to seasonal trends than hunting firearms, general consumer spending patterns can still influence the best time to sell. A strong selling period is often in the spring, from March to May, which coincides with tax refund season. During this time, many potential buyers have more disposable income and are looking to make significant purchases. Listing your rifle during this window can increase its visibility to a larger pool of motivated buyers, potentially leading to a faster sale at your desired price.

In contrast to hunting rifles and shotguns, which see a clear spike in demand during the late summer and early fall months leading up to hunting seasons, the SR-15’s appeal is consistent year-round. Its value is driven more by its reputation and market availability than by a specific time of year. However, it can be strategic to avoid listing during major holidays like Christmas, when consumer spending is heavily focused on other retail sectors. The ideal time is when buyers have cash on hand and are actively looking for high-end firearms.

Beyond seasonal timing, the most critical factor influencing the SR-15’s value is market supply and demand. Knight’s Armament is known for producing rifles in batches, leading to periods of low retail availability. During these “droughts,” the value of used SR-15s on the secondary market can increase significantly as demand outstrips supply. Astute sellers should monitor online forums and major firearms marketplaces to identify these peak periods. Selling when the rifle is hardest to find new is the surest way to maximize your financial return.

Common Pricing Mistakes

One of the most common pricing errors sellers make is significantly devaluing their SR-15 due to a high round count. Unlike standard AR-15s, a KAC rifle is engineered for extreme durability. Its proprietary components, most notably the E3 bolt which is warrantied for a minimum of 20,000 rounds, are designed for a long service life. The market for these rifles expects them to be used, and as long as the firearm has been properly maintained, it will retain its value far better than its counterparts, making a steep discount for usage unnecessary.

A critical and potentially illegal mistake is misrepresenting the rifle’s NFA status. A standard KAC SR-15 with a 16-inch barrel is classified as a long gun and is not an NFA item. However, factory models with barrels shorter than 16 inches are legally defined as Short-Barreled Rifles (SBRs) and are subject to all NFA regulations, including a tax stamp and registration. Failing to properly disclose this or attempting to sell an SBR as a standard rifle can lead to severe legal consequences and financial liability for both the buyer and seller.

Sellers new to the process often mistake a dealer’s trade-in offer for the rifle’s actual private market value. An FFL dealer will typically offer between 50% and 70% of what a firearm is worth in a private sale. This lower offer is not a reflection of the rifle’s worth but is a necessary business practice to cover the dealer’s overhead and secure a profit. Understanding this distinction is crucial for setting a realistic price for a private sale and avoiding the mistake of undervaluing your premium firearm based on a lowball trade-in quote.

Market Outlook for 2026

Forecasting the precise market value of any firearm for 2026 is challenging, as there is no definitive industry consensus on the future price of the KAC SR-15. Its valuation is subject to a variety of unpredictable factors, including Knight’s Armament’s production output, shifts in consumer demand, potential changes in firearms legislation, and the overall health of the economy. These variables make any long-term prediction speculative, though historical performance can provide some insight into its potential trajectory and stability as an asset in the firearms market.

Historically, KAC products have demonstrated an exceptional ability to hold their value and, in many cases, appreciate over time. This trend is driven by the brand’s unwavering reputation for top-tier quality, its combat-proven legacy, and often-limited availability, which creates a dedicated and passionate following. Barring any major market disruptions, it is reasonable to expect that the SR-15 will continue to be a highly sought-after rifle. Its status as a benchmark for performance and reliability should ensure it remains a valuable and desirable firearm for years to come.

Frequently Asked Questions

Does the barrel length significantly impact my SR-15’s value?

Yes, barrel length has a massive impact on value. A standard 16-inch rifle is highly desirable, but factory models with barrels shorter than 16 inches, such as the 11.5-inch CQB, are classified as NFA-regulated Short-Barreled Rifles (SBRs). These SBRs command a significant price premium due to their high demand for compact applications and the additional legal paperwork required for ownership. A complete factory SBR can easily be worth thousands more than its 16-inch counterpart, representing the top tier of the SR-15 market.

Will a high round count hurt my rifle’s resale price?

A high round count will affect a KAC SR-15’s value far less than a standard AR-15. These rifles are engineered for extreme durability, with critical components like the proprietary E3 bolt being warrantied for at least 20,000 rounds. The market for KAC products understands they are built to be used heavily. As long as the rifle shows signs of proper maintenance and care, it will retain its value exceptionally well, and sellers should not feel pressured to offer a steep discount based on usage alone.

Is it better to sell my SR-15 with or without aftermarket parts?

For maximizing value, it is almost always better to return the rifle to its original factory configuration before selling. The value of a KAC SR-15 is intrinsically linked to its high-quality, factory-engineered components. For example, replacing the excellent stock two-stage trigger is often considered a downgrade by discerning buyers. While you can offer to sell high-end optics or lights as part of a package, you will typically achieve a better financial return by selling those premium accessories separately from the base rifle.

How much less will I get if I sell to a dealer instead of a private buyer?

You should anticipate a substantially lower offer from a dealer compared to a private sale. Gun dealers operate on a business model that requires them to buy used firearms at a price low enough to cover overhead and make a profit, which is typically 50% to 70% of the private party value. For a highly desirable rifle like an SR-15, the offer may be at the higher end of that range—perhaps around 65%—but it will still be significantly less than what can be achieved by selling directly to another enthusiast.

Does my SR-15 need a professional appraisal before selling?

A professional appraisal is highly recommended for a premium firearm like the KAC SR-15. Its high value and various configurations can make accurate pricing difficult for the average owner. An appraisal verifies the rifle’s authenticity, provides an expert assessment of its condition, and establishes a fair market value based on current data. This documentation lends significant credibility to your asking price, builds trust with potential buyers, and gives them the confidence needed to pay a premium for a top-tier, well-documented firearm.