Springfield’s New Heatseeker Rifle is a True 1/2 MOA Factory Gun

The Illinois gunmaker has been rapidly increasing the Mannequin 2020 line over the previous few years, and the most recent iteration hit the cabinets within the latter half of 2025. The Heatseeker makes use of the favored Mannequin 2020 motion however marries it to a Sharps Bros. Heatseeker Chassis. The mixture guarantees the modularity of an AR-platform rifle and the precision of a bolt-action—and on that second rating, I gotta say, this rifle delivers.

Calibers Provided: 6.5 Creedmoor (examined), 308 Winchester

Barrel: 20″ Carbon Fiber, 1:8, 5/8×24, Coyote Brown Cerakote® H-250

Receiver: Mannequin 2020 Stainless Metal, Coyote Brown Cerakote® H-250

Optic Mounting: Picatinny Mount, Rem 700 SA Sample, 6-48 Screws

Bolt: Fluted 4140 Instrument Metal, Nitride

Inventory: Sharps Bros Heatseeker M-Lok Chassis; B5 Techniques Collapsible Precision Inventory – Giant; B5 Techniques P-Grip 23

Set off: TriggerTech Adjustable, 2.5 – 5 lbs

Muzzle Gadget: Thread Protector

Springfield’s pitch for the Mannequin 2020 has at all times been that it’s the final word fashionable rifle. Springfield Armory—to not be confused with the historic authorities arsenal of the identical identify—has been making bolt-action lengthy weapons for less than six years. Moving into the sport so late, they are saying, provides them recent eyes and permits them to undertake all one of the best concepts from earlier designs.

The Mannequin 2020 motion contains a 90-degree bolt throw, detachable bolt head, twin locking lugs, and a fluted bolt. New gun designs virtually at all times expertise rising pains, however the 2020 has been round lengthy sufficient that if there have been any main design flaws, they might have been uncovered.

This iteration of the Mannequin 2020 contains a Sharps Bros. Heatseeker Chassis, which affords the rigidity of a contest system with out fairly as a lot weight. The chassis correct (the portion that bolts onto the receiver) clocks in at 19 ounces whereas the detachable handguard weighs a scant 10 ounces. Each are constructed from aluminum, and the chassis is crafted from billet (stable block) high-strength 6061-T6. That offers it glorious rigidity, which contributes to accuracy and repeatability. It additionally accepts normal AICS magazines (one included), so that you gained’t have any bother feeding your new rifle.

The one draw back of this chassis system is that it’s a must to take away the handguard earlier than taking the barreled motion out of the rifle. That may be completed simply sufficient by loosening two screws on the underside of the handguard and sliding it off the barrel. But it surely provides an additional step to the method, so it’s value noting.

The Heatseeker chassis seems like many different fashionable chassis programs, but it surely affords one (comparatively) distinctive benefit: It accepts AR-15 furnishings. The pistol grip will be swapped out for any normal AR grip, and the rear of the chassis will be fitted with an AR-style buffer tube and corresponding inventory. On this case, the rifle comes with a B5 Techniques Collapsible Precision Inventory. The B5 Precision Inventory makes use of two rotating wheels that rapidly and securely modify the comb top and size of pull (LOP). I particularly preferred the cheek riser. It makes use of tender, rubbery padding, and I appreciated having the ability to modify it to exactly the proper top.

The system works as meant, however you may resolve for your self whether or not it’s helpful. It does let you simply swap shares to suit your wants. This B5 inventory is snug however cumbersome, so you may want a extra streamlined inventory for strolling by means of the woods or climbing right into a tree stand. However I don’t see many individuals needing the six-position buffer system. Most scopes can’t be mounted far sufficient to the rear to make use of any however the shortest and next-to-shortest inventory place. Plus, the B5 inventory can already modify for LOP, so the six-position tube is redundant.

The pistol model of the Heatseeker makes use of a picatinny rail as an alternative of a buffer tube, which I feel is a way more helpful choice. Sadly, Springfield solely affords the pistol in .308 Win. with a 12-inch barrel. It’s a slick little setup–particularly with a suppressor–however not ideally suited for all hunts or functions. I’m hoping they develop the pistol lineup within the close to future.

Springfield makes use of all aftermarket elements on its new rifle, permitting product builders to choose and select high-quality parts. Many rifle makers lately have adopted this technique. They produce barreled actions in-house however supply the inventory, set off, and related elements from different corporations. On this rifle, the chassis is from Sharps Bros., the inventory and grip are from B5 Techniques, and the set off is from TriggerTech.

This begs the query: why would you pay Springfield to assemble the Mannequin 2020 Heatseeker in case you can simply do it your self utilizing the corporate’s standalone motion? Putting in a set off in a receiver and becoming the receiver to a chassis is simple, particularly with the proper instruments and a little bit know-how. In the event you plan to swap out the inventory, it looks like you can avoid wasting cash by making a Mannequin 2020 Heatseeker your self.

Right here’s how the prices break down:

As you may see, Springfield’s MSRP of $2,355 is honest sufficient, and I’m seeing these rifles on-line for nearer to $2,100.

My build-it-yourself whole additionally doesn’t embrace the price of paying a gunsmith to put in a barrel (~$150), and a carbon fiber unit will doubtless price greater than $500. I’m additionally undecided Sharps. Bros even affords the Heatseeker within the Mannequin 2020 platform. They checklist numerous actions on their web site, however as of this writing, I don’t see Springfield’s amongst them.

You won’t have the ability to assemble precisely the identical rifle for a cheaper price, but it surely’s nonetheless value wanting intently at how these fashionable rifles are put collectively—and deciding whether or not for any specific mannequin, the advantages outweigh the associated fee.

After digging into this rifle’s parts, I used to be excited to take the Heatseeker to the vary and begin pulling the set off. I wasn’t anticipating it to carry out all that a lot better than the Mannequin 2020 Boundary rifle I examined in 2024. It’s the identical motion and barrel, and I’ve by no means seen large accuracy positive aspects by swapping one fashionable inventory or chassis for one more.

Seems, I used to be flawed. This factor actually shoots. And never only for one or two teams, however for group after group after group. It clearly didn’t favor these 120-grain all-copper projectiles, but it surely shot lights-out with match bullets and Sig Sauer’s Marksman Hunter masses.

As you may see, Springfield delivers on its 0.75 MOA promise–and then some. I am often skeptical about accuracy ensures as a result of most fashionable rifles can shoot no less than one good group. To be actually sub-MOA–or 0.75 or 0.5 MOA–the rifle has to ship group after group. This rifle does, and it even carried out with a number of bullet weights and types. I truthfully cannot recall the final time I’ve examined a manufacturing facility rifle that averages a half-inch group at 100 yards. That is some distinctive efficiency, and it speaks to the standard of Springfield’s manufacturing.

It is attainable I obtained a very well-made pattern. I’ve seen different critiques that report much less spectacular accuracy outcomes, although none used precisely the identical ammunition. Nonetheless, I feel my outcomes present what’s attainable with good ammo, and I’ve little question that every Mannequin 2020 Heatseeker will submit good teams with a little bit trial and error.

Plus, fitted with a MeatEater Banish suppressor, I may shoot this factor all day with zero discomfort. I additionally by no means skilled any malfunctions or jams because the Mannequin 2020 motion cycled easily shot after shot.

The Mannequin 2020 Heatseeker clearly matches inside–and is attempting to capitalize on–a bigger pattern within the searching rifle world. Whereas conventional traces stay fashionable, many hunters are hitting the woods with modular, AR-like bolt weapons that provide far higher ranges of customizability. You may get some odd seems from the old-timers in case you take the Heatseeker to deer camp, however you’ll get far fewer of these seems right now than you’d have 10 years in the past.

That’s partly as a result of many have acknowledged the advantages of customizing your rifle to maximise consolation. Utilizing a inventory and pistol grip that may be adjusted to your physique makes the Heatseeker simpler to shoot even from awkward positions. Including your favourite muzzle gadget to the threaded barrel helps as nicely, and the removable journal aids in loading and unloading.

A clear, crisp set off–which actually describes this TriggerTech mannequin–rounds out the ergonomic image, making the Heatseeker a pleasure to shoot on the vary or within the blind.

And but, there are higher choices for each functions. First, Springfield solely affords the Mannequin 2020 Heatseeker in two chamberings: 6.5 Creedmoor and .308 Winchester. Different Mannequin 2020s can be found in long-action cartridges, but it surely seems like Sharps Bros. solely makes a short-action model of their chassis. That quick motion retains the rifle’s weight down, however at over 7.5 kilos, it nonetheless ain’t mild. And whereas the inventory is adjustable, it makes the rifle overly lengthy at any however the shortest positions. All these components mixed, the Heatseeker won’t be a superb match for some hunters.

In that case, you may say, the Heatseeker would make a superb competitors gun. You can actually shoot it competitively–and relying in your ability, you might need success. However devoted competitors chassis programs supply even higher ranges of customization. They are often fitted with weights at totally different places to regulate the rifle’s stability, and lots of make the most of an ARCA attachment system for bipods and tripods. And whereas the 6.5 Creedmoor has gained its share of competitions, the dearth of cartridge choices will likely be a flip off for a lot of opponents.

Probably the most pure method to consider the Heatseeker is as a crossover gun–one thing you may take to the sphere but in addition use in your native Saturday-morning rifle competitors. That entails some compromise, as a rifle devoted to a single software will at all times be higher at that job than a Jack of All Trades. However do-it-all weapons have an attraction of their very own, and I feel the Heatseeker performs that function nicely.

I’d amend Col. Whelen’s maxim to learn, “Some fascinating rifles aren’t correct, however all correct rifles are helpful.”

You, like me, may quibble with among the Heatseeker’s options and query whether or not they have actual attraction. However on the finish of the day, a gun that places a bullet the place you need it to go will at all times be extra helpful than a rifle that doesn’t–even when that rifle has all the proper options. The Heatseeker is perhaps a little bit cumbersome to hold into the tree stand, however when you get it there, it’ll hit what you’re aiming at so long as you do your half. Similar goes for a contest. It won’t serve your wants completely in every situation, however you may belief it to carry out the place it counts.

So far as I’m involved, there’s no increased reward.