HK33A2 Excellent Pre May Keeper 3025139

About this product

The HK33A2 up for sale here is a pre-May 1986 "keeper" — an NFA-registered, fully transferable machine gun built by Heckler & Koch in West Germany. Because it was registered on the National Firearms Registration and Transfer Record before the May 19, 1986 cutoff date, it can legally change hands between private citizens who complete the federal transfer process, unlike post-1986 dealer/law-enforcement-only samples. That legal status is a big part of why pre-86 transferable guns like this one carry a serious price premium over anything built after the ban.

What is the HK33A2, mechanically?

The HK33A2 is a select-fire rifle chambered in 5.56x45mm NATO / .223 Remington, built around H&K's roller-delayed blowback action — the same operating system found in the G3 and MP5 family, scaled down to an intermediate cartridge. It feeds from 25-, 30-, or 40-round detachable box magazines and cycles at roughly 750 rounds per minute, with a claimed muzzle velocity near 3,117 fps. The rifle uses H&K's signature rotary rear aperture drum sight and hooded front post, adjustable out to 400 meters with the drum, or further with an optic. It weighs about 8 lbs unloaded and runs 36.2 inches overall with a 15.4-inch barrel. This particular family of rifles saw real operational use — SEAL Team 2 carried HK33-pattern rifles in Vietnam in the late 1960s — which is part of the collector appeal on top of the mechanical pedigree.

What is a "keeper" and how does the transfer actually work?

"Keeper" is collector shorthand for a transferable machine gun the seller intends to hold and sell as a complete, legal NFA item — as opposed to a dealer sample restricted to law enforcement demonstration use. Because this is a Title II firearm, it cannot ship to a home address under any circumstance. The sale has to move through a licensed Class III dealer (an FFL holding a Special Occupational Tax, or SOT), using an ATF Form 4 application and a $200 federal transfer tax stamp. Processing currently runs anywhere from a few weeks to several months depending on the ATF's queue and whether the transfer goes to an individual or a properly structured NFA trust. Only after that approval clears does the rifle move to the buyer's chosen SOT dealer for pickup.

Can this HK33A2 be delivered to a California buyer?

This is the part buyers need to slow down for. California law generally prohibits civilian possession of machine guns, and that state-level restriction sits on top of the federal NFA process — a cleared ATF Form 4 does not by itself make a machine gun legal to receive in every state. A narrow set of exceptions exists for certain licensed collectors, dealers, and manufacturers, but the qualifying paperwork is specific and not something most buyers already have in hand. Anyone in California interested in this rifle should talk to a licensed Class III/SOT dealer before submitting any paperwork, to confirm eligibility under both California and federal law rather than finding out partway through a months-long transfer.

Is this a good collector investment?

Pre-86 transferable machine guns have trended upward in value for years, since the registry has been closed to new civilian-transferable guns since 1986 and the supply only shrinks over time (through destruction, deactivation, or guns moving into permanent institutional collections). An HK33A2 in good working condition, with clean transfer paperwork, checks the boxes collectors look for: correct configuration, functioning roller-delayed action, and genuine West German manufacture rather than a later commercial clone.

Because the specific finish, import marks, and included magazines/accessories on this individual rifle weren't independently verified beyond the base HK33A2 specification, buyers should ask our team for current photos and a full parts/finish rundown before starting the Form 4 paperwork.