Buy Guide & Variants

5.1 Reading the Suffix

The hardest part of buying a CM.040 is not the gun — it is the name. “CM.040” is used loosely across retailers and covers a family of AK74M, AK105, and AKS-74M-style rifles that differ in stock type, barrel length, and FPS. Worse, retailer labeling is inconsistent: one shop lists an “AKS101” and a “CM040C AK74M,” another labels the same base gun “CM.040 AKS74M.” The reliable move is to buy by the photo and the stock type, not the suffix — confirm the actual configuration in the listing’s images and spec table before paying. With that warning in place, here is how the common variants line up.

Table 1 — Reading the Suffix

Variant	Pattern	Stock	Inner barrel	Notes
CM040	AK74M	Fixed polymer (full-length)	~470–500 mm	Base gun; polymer furniture; also sold as AKS-74M/AKS101 w/ steel side-folder
CM040B	AK105	Skeleton steel side-folder	~363 mm	Compact; measured ~417 fps / 1.6 J; CQB-to-mid-range; 14 mm CCW thread
CM040C	AK74M / AKS-74M	Steel folding (full-length)	~470 mm	Full-length folder; ~3.2 kg; 24 mm CW thread
CM040A / CM040D+	AK74M and others	Varies	—	Exist in CYMA’s line; configs inconsistently documented (unconfirmed)

The choice between them is mostly stock and length. The CM040 base gun with its fixed polymer stock is the lightest-footprint full-length option. The CM040C swaps in a full-length steel folding stock — the pick for a player who wants a folder without losing barrel length. The CM040B (AK105) is the compact choice: a much shorter ~363 mm inner barrel and a skeleton folder make it the CQB/mid-range gun of the family, and it is the one variant with a published muzzle energy (1.6 J). A folding stock adds versatility for transport and tight spaces; a fixed stock is one less wear point (recall the wobbly-folder note from Volume 4).

5.2 What to Check Before You Pay

Because the specs are variant- and lot-dependent, a few items are worth verifying on the actual listing rather than assuming:

• FPS, on 0.20 g. This is the big one. Stock velocity ranges roughly 380–430 fps across current full-metal variants (typical/approx), and individual listings disagree — one page even quotes 420–430 fps in its description and 350–375 fps in its spec table. Some older/region-locked units run lower (~330–370 fps). Confirm the figure and the BB weight it was measured on, and match it to the field you intend to play (Volume 3): a ~417 fps AK is fine outdoors and over the limit at most CQB sites.
• Stock type — folding vs fixed. Decide before buying; the suffix is not a reliable guide, so read the photos.
• Magazine type and capacity. Listings cite 400, 500, or 600 rounds; ~500 rd is most common. Confirm a hi-cap is included and note that CYMA, LCT, DBoy, and Arcturus AK mags cross-shop.
• Motor. Newer lots may ship a neodymium-magnet motor — a quiet upgrade worth confirming if performance matters.
• No MOSFET. Every variant ships without one (Volume 2). Budget for a MOSFET + Deans swap if an 11.1 V LiPo is the plan.

5.3 Price and Where to Buy

The CM.040 sits in the budget-AK tier. Real-world pricing clusters around ~$170 USD — RedWolf lists the CM040C at $169.99, Airsoft GI’s CM040C at about $182.91 and its AKS101 at $184.99. (Evike’s #48034 listing showing ~$229 gun-only is a pre-order/limited-stock figure and not representative of the normal street price.) Airsoft pricing is volatile, so verify at purchase; the working expectation is roughly $150–185 for a full-metal CYMA AK, which is the value proposition the whole series is built on.

For US buyers the reliable retailers are Airsoft GI and RedWolf, with Evike and Tiger111HK also carrying the line; EU buyers have Taiwangun, Evike Europe, and AirsoftZone. Amazon and similar third-party marketplaces list the guns but with volatile pricing and uncertain stock — prefer a dedicated airsoft retailer where the spec table, the chrono figure, and the return policy are clear. Because CYMA externals interchange with LCT, a buyer who expects to upgrade can start here cheaply and migrate toward premium parts over time — which is exactly why the CM.040 has held its place as the value king of AK AEGs.

5.4 The Bottom Line

The CYMA CM.040 is the AK answer to “what should I buy?” — a genuinely full-metal Kalashnikov for around $170 that arrives heavy, hits hard, and runs reliably on a 7.4 V LiPo out of the box. It is built on the Version 3 gearbox that defines the AK platform, it upgrades on Tokyo Marui spec, and its externals walk the path toward LCT. Pick the variant by stock and length, confirm the FPS against the field, add a MOSFET before reaching for 11.1 V, and it will be the cheapest serious AK most players ever need to buy.