PSA: PlumCrazy Polymer Lowers ILLEGAL Says Letter from BATFE PlumCrazy was a brand of polymer AR-15 lower receivers that were manufactured by PCF Manufacturing until they mysteriously went out of business in late 2011. Recently, a company, whose name I have been asked not to disclose, sent in a sample of a PlumCrazy lower to the BATFE to find out if the method they used to attached the metal serial number plate to the polymer lower was legal. Turns out, its not! PlumCrazy lower receivers are illegal, and have always been illegal under Federal Law. Metal serial numbers plates attached to polymer firearms must be embedded in such a way that removing them will significantly damage or destroy the firearm. In the BATFE letter, dated June 18 2013, Firearms Technology Branch technicians were able to remove the PlumCrazy serial number using just a hammer and a screwdriver in just one minute and without doing any damage to the receiver. The letter says … During the examination of the submitted AR- 15 type firearm receiver section (serial number RM00501 ), FTB also found that both the height and depth of the serial number markings are acceptable and thus compliant with§ 478.92. With respect to the adequacy of the attachment of the insert for this frame, the FTB evaluation revealed that the serial number consisted of a thin sheet of metal-like material and was attached to the surface of the embedded metal insert. This serial number was easily removed when a hammer and screw driver were used to peel the sheet off of the metal insert. This action took approximately 1 minute and caused no damage to the receiver. (See enclosed photos depicting the removal of the serial number insert.) … the method used to attach the serial number insert (serial number RM00501) on the partial receiver sample is not compliant with Federal Law. Signed Earl Griffith, Chief, Firearms Technology Branch The last thing posted on the PCF Manufacturing website, dated 6 October 2011, was this message (copied verbatim, including spelling errors and odd punctuation, emphasis added) … If you’re confused because you were looking for PlumCrazy Firearms,don’t be -·you’re in the right place; we are just adding a variance to our licence. Our composite lowers will carry the new branding and maintain the high level of quality you’ve come to expect from our products. We wil,l however, be phasing out the Plumcrazy branded lowers, so get them while you can! So what’s the reason for the branding change? Well, as we have more law enforcement and military wanting to use our products, having “PlumCrazy” on the side of the magwell may not be the best· idea……, that’s it -·no conspiracy or anything, just a simple business decision that allows us to further broaden our market place. What’s this change mean to you? Well, nothing unless you just can’t live without seeing “Plumcrazy” on your lower. We plan to maintain the same price point as before, and·continue to provide you with·the best customer service in the industry PumCrazy lowers were quite popular. There could be thousands of gun owners around the country who, in good faith, purchase an illegal product.